Home / 103,681.20-155,542.16-47,522.69

Finding the Fourth Proportional to 103,681.20, 155,542.16 and 47,522.69

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Solution

The fourth proportional to 103,681.20, 155,542.16 and 47,522.69 is: 71,293.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,681.20 : 155,542.16 = 47,522.69 : x
  2. Step 2: Convert to fraction form
    103,681.20/155,542.16 = 47,522.69/x
  3. Step 3: Cross multiply
    103,681.20x = 155,542.16 × 47,522.69
  4. Step 4: Simplify right side
    103,681.20x = 7,391,781,851.61
  5. Step 5: Solve for x
    x = 7,391,781,851.61/103,681.20
  6. Step 6: Final answer
    x = 71,293.37

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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.