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Finding the Fourth Proportional to 88,750.74, 132,446.84 and 79,284.46

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Solution

The fourth proportional to 88,750.74, 132,446.84 and 79,284.46 is: 118,319.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,750.74 : 132,446.84 = 79,284.46 : x
  2. Step 2: Convert to fraction form
    88,750.74/132,446.84 = 79,284.46/x
  3. Step 3: Cross multiply
    88,750.74x = 132,446.84 × 79,284.46
  4. Step 4: Simplify right side
    88,750.74x = 10,500,976,188.11
  5. Step 5: Solve for x
    x = 10,500,976,188.11/88,750.74
  6. Step 6: Final answer
    x = 118,319.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.