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Finding the Fourth Proportional to 103,691.40, 155,537.10 and 95,089.80

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Solution

The fourth proportional to 103,691.40, 155,537.10 and 95,089.80 is: 142,634.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,691.40 : 155,537.10 = 95,089.80 : x
  2. Step 2: Convert to fraction form
    103,691.40/155,537.10 = 95,089.80/x
  3. Step 3: Cross multiply
    103,691.40x = 155,537.10 × 95,089.80
  4. Step 4: Simplify right side
    103,691.40x = 14,789,991,731.58
  5. Step 5: Solve for x
    x = 14,789,991,731.58/103,691.40
  6. Step 6: Final answer
    x = 142,634.70

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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.