Home / 103,654.28-155,292.78-71,997.46

Finding the Fourth Proportional to 103,654.28, 155,292.78 and 71,997.46

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Solution

The fourth proportional to 103,654.28, 155,292.78 and 71,997.46 is: 107,865.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,654.28 : 155,292.78 = 71,997.46 : x
  2. Step 2: Convert to fraction form
    103,654.28/155,292.78 = 71,997.46/x
  3. Step 3: Cross multiply
    103,654.28x = 155,292.78 × 71,997.46
  4. Step 4: Simplify right side
    103,654.28x = 11,180,685,716.34
  5. Step 5: Solve for x
    x = 11,180,685,716.34/103,654.28
  6. Step 6: Final answer
    x = 107,865.16

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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.