Home / 112,425.62-155,141.26-62,121.38

Finding the Fourth Proportional to 112,425.62, 155,141.26 and 62,121.38

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Solution

The fourth proportional to 112,425.62, 155,141.26 and 62,121.38 is: 85,724.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,425.62 : 155,141.26 = 62,121.38 : x
  2. Step 2: Convert to fraction form
    112,425.62/155,141.26 = 62,121.38/x
  3. Step 3: Cross multiply
    112,425.62x = 155,141.26 × 62,121.38
  4. Step 4: Simplify right side
    112,425.62x = 9,637,588,235.13
  5. Step 5: Solve for x
    x = 9,637,588,235.13/112,425.62
  6. Step 6: Final answer
    x = 85,724.13

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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.