Home / 131,155.41-180,988.07-74,565.57

Finding the Fourth Proportional to 131,155.41, 180,988.07 and 74,565.57

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Solution

The fourth proportional to 131,155.41, 180,988.07 and 74,565.57 is: 102,896.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,155.41 : 180,988.07 = 74,565.57 : x
  2. Step 2: Convert to fraction form
    131,155.41/180,988.07 = 74,565.57/x
  3. Step 3: Cross multiply
    131,155.41x = 180,988.07 × 74,565.57
  4. Step 4: Simplify right side
    131,155.41x = 13,495,478,229.92
  5. Step 5: Solve for x
    x = 13,495,478,229.92/131,155.41
  6. Step 6: Final answer
    x = 102,896.85

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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.