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Finding the Fourth Proportional to 88,566, 132,687 and 69,631.44

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Solution

The fourth proportional to 88,566, 132,687 and 69,631.44 is: 104,319.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,566 : 132,687 = 69,631.44 : x
  2. Step 2: Convert to fraction form
    88,566/132,687 = 69,631.44/x
  3. Step 3: Cross multiply
    88,566x = 132,687 × 69,631.44
  4. Step 4: Simplify right side
    88,566x = 9,239,186,879.28
  5. Step 5: Solve for x
    x = 9,239,186,879.28/88,566
  6. Step 6: Final answer
    x = 104,319.79

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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.