Home / 112,691.16-155,513.34-61,704.12

Finding the Fourth Proportional to 112,691.16, 155,513.34 and 61,704.12

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Solution

The fourth proportional to 112,691.16, 155,513.34 and 61,704.12 is: 85,151.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,691.16 : 155,513.34 = 61,704.12 : x
  2. Step 2: Convert to fraction form
    112,691.16/155,513.34 = 61,704.12/x
  3. Step 3: Cross multiply
    112,691.16x = 155,513.34 × 61,704.12
  4. Step 4: Simplify right side
    112,691.16x = 9,595,813,792.96
  5. Step 5: Solve for x
    x = 9,595,813,792.96/112,691.16
  6. Step 6: Final answer
    x = 85,151.43

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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.