Home / 221,904.18-332,823.47-81,630

Finding the Fourth Proportional to 221,904.18, 332,823.47 and 81,630

Calculator

Solution

The fourth proportional to 221,904.18, 332,823.47 and 81,630 is: 122,432.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,904.18 : 332,823.47 = 81,630 : x
  2. Step 2: Convert to fraction form
    221,904.18/332,823.47 = 81,630/x
  3. Step 3: Cross multiply
    221,904.18x = 332,823.47 × 81,630
  4. Step 4: Simplify right side
    221,904.18x = 27,168,379,447.95
  5. Step 5: Solve for x
    x = 27,168,379,447.95/221,904.18
  6. Step 6: Final answer
    x = 122,432.93

Related Problems

Find fourth proportional to 110,952.09, 166,411.73 and 40,815
Half scale
Find fourth proportional to 443,808.36, 665,646.93 and 163,260
Double scale
Find fourth proportional to 221,905.18, 332,824.96 and 81,631
Similar ratio
Find fourth proportional to 332,856.27, 499,235.20 and 122,445
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.