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Finding the Fourth Proportional to 119,651.39, 165,116.78 and 65,204.03

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Solution

The fourth proportional to 119,651.39, 165,116.78 and 65,204.03 is: 89,980.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,651.39 : 165,116.78 = 65,204.03 : x
  2. Step 2: Convert to fraction form
    119,651.39/165,116.78 = 65,204.03/x
  3. Step 3: Cross multiply
    119,651.39x = 165,116.78 × 65,204.03
  4. Step 4: Simplify right side
    119,651.39x = 10,766,279,476.62
  5. Step 5: Solve for x
    x = 10,766,279,476.62/119,651.39
  6. Step 6: Final answer
    x = 89,980.40

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1.5x scale

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.