Home / 119,650.64-165,116.68-71,902.80

Finding the Fourth Proportional to 119,650.64, 165,116.68 and 71,902.80

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Solution

The fourth proportional to 119,650.64, 165,116.68 and 71,902.80 is: 99,225.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,650.64 : 165,116.68 = 71,902.80 : x
  2. Step 2: Convert to fraction form
    119,650.64/165,116.68 = 71,902.80/x
  3. Step 3: Cross multiply
    119,650.64x = 165,116.68 × 71,902.80
  4. Step 4: Simplify right side
    119,650.64x = 11,872,351,618.70
  5. Step 5: Solve for x
    x = 11,872,351,618.70/119,650.64
  6. Step 6: Final answer
    x = 99,225.14

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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.