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Finding the Fourth Proportional to 133,036.76, 199,555.12 and 88,750

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Solution

The fourth proportional to 133,036.76, 199,555.12 and 88,750 is: 133,124.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,036.76 : 199,555.12 = 88,750 : x
  2. Step 2: Convert to fraction form
    133,036.76/199,555.12 = 88,750/x
  3. Step 3: Cross multiply
    133,036.76x = 199,555.12 × 88,750
  4. Step 4: Simplify right side
    133,036.76x = 17,710,516,900
  5. Step 5: Solve for x
    x = 17,710,516,900/133,036.76
  6. Step 6: Final answer
    x = 133,124.99

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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.