Home / 112,747.13-155,532.05-69,712.87

Finding the Fourth Proportional to 112,747.13, 155,532.05 and 69,712.87

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Solution

The fourth proportional to 112,747.13, 155,532.05 and 69,712.87 is: 96,167.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,747.13 : 155,532.05 = 69,712.87 : x
  2. Step 2: Convert to fraction form
    112,747.13/155,532.05 = 69,712.87/x
  3. Step 3: Cross multiply
    112,747.13x = 155,532.05 × 69,712.87
  4. Step 4: Simplify right side
    112,747.13x = 10,842,585,254.80
  5. Step 5: Solve for x
    x = 10,842,585,254.80/112,747.13
  6. Step 6: Final answer
    x = 96,167.28

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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.