Home / 213,210-294,255.72-123,786

Finding the Fourth Proportional to 213,210, 294,255.72 and 123,786

Calculator

Solution

The fourth proportional to 213,210, 294,255.72 and 123,786 is: 170,839.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,210 : 294,255.72 = 123,786 : x
  2. Step 2: Convert to fraction form
    213,210/294,255.72 = 123,786/x
  3. Step 3: Cross multiply
    213,210x = 294,255.72 × 123,786
  4. Step 4: Simplify right side
    213,210x = 36,424,738,555.92
  5. Step 5: Solve for x
    x = 36,424,738,555.92/213,210
  6. Step 6: Final answer
    x = 170,839.73

Related Problems

Find fourth proportional to 106,605, 147,127.86 and 61,893
Half scale
Find fourth proportional to 426,420, 588,511.44 and 247,572
Double scale
Find fourth proportional to 213,211, 294,257.10 and 123,787
Similar ratio
Find fourth proportional to 319,815, 441,383.58 and 185,679
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.