Home / 165,931.36-228,990-90,484

Finding the Fourth Proportional to 165,931.36, 228,990 and 90,484

Calculator

Solution

The fourth proportional to 165,931.36, 228,990 and 90,484 is: 124,870.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,931.36 : 228,990 = 90,484 : x
  2. Step 2: Convert to fraction form
    165,931.36/228,990 = 90,484/x
  3. Step 3: Cross multiply
    165,931.36x = 228,990 × 90,484
  4. Step 4: Simplify right side
    165,931.36x = 20,719,931,160
  5. Step 5: Solve for x
    x = 20,719,931,160/165,931.36
  6. Step 6: Final answer
    x = 124,870.50

Related Problems

Find fourth proportional to 82,965.68, 114,495 and 45,242
Half scale
Find fourth proportional to 331,862.72, 457,980 and 180,968
Double scale
Find fourth proportional to 165,932.36, 228,991.38 and 90,485
Similar ratio
Find fourth proportional to 248,897.04, 343,485 and 135,726
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.