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Finding the Fourth Proportional to 119,742, 165,250.92 and 66,038.44

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Solution

The fourth proportional to 119,742, 165,250.92 and 66,038.44 is: 91,136.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,742 : 165,250.92 = 66,038.44 : x
  2. Step 2: Convert to fraction form
    119,742/165,250.92 = 66,038.44/x
  3. Step 3: Cross multiply
    119,742x = 165,250.92 × 66,038.44
  4. Step 4: Simplify right side
    119,742x = 10,912,912,965.36
  5. Step 5: Solve for x
    x = 10,912,912,965.36/119,742
  6. Step 6: Final answer
    x = 91,136.89

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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.