Home / 103,542.62-155,314.18-31,496.15

Finding the Fourth Proportional to 103,542.62, 155,314.18 and 31,496.15

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Solution

The fourth proportional to 103,542.62, 155,314.18 and 31,496.15 is: 47,244.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,542.62 : 155,314.18 = 31,496.15 : x
  2. Step 2: Convert to fraction form
    103,542.62/155,314.18 = 31,496.15/x
  3. Step 3: Cross multiply
    103,542.62x = 155,314.18 × 31,496.15
  4. Step 4: Simplify right side
    103,542.62x = 4,891,799,138.06
  5. Step 5: Solve for x
    x = 4,891,799,138.06/103,542.62
  6. Step 6: Final answer
    x = 47,244.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.