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Finding the Fourth Proportional to 119,758.87, 165,263.98 and 66,042.91

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Solution

The fourth proportional to 119,758.87, 165,263.98 and 66,042.91 is: 91,137.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,758.87 : 165,263.98 = 66,042.91 : x
  2. Step 2: Convert to fraction form
    119,758.87/165,263.98 = 66,042.91/x
  3. Step 3: Cross multiply
    119,758.87x = 165,263.98 × 66,042.91
  4. Step 4: Simplify right side
    119,758.87x = 10,914,513,000.85
  5. Step 5: Solve for x
    x = 10,914,513,000.85/119,758.87
  6. Step 6: Final answer
    x = 91,137.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.