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Finding the Fourth Proportional to 120,150.92, 165,794.16 and 66,432.73

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Solution

The fourth proportional to 120,150.92, 165,794.16 and 66,432.73 is: 91,669.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,150.92 : 165,794.16 = 66,432.73 : x
  2. Step 2: Convert to fraction form
    120,150.92/165,794.16 = 66,432.73/x
  3. Step 3: Cross multiply
    120,150.92x = 165,794.16 × 66,432.73
  4. Step 4: Simplify right side
    120,150.92x = 11,014,158,666.86
  5. Step 5: Solve for x
    x = 11,014,158,666.86/120,150.92
  6. Step 6: Final answer
    x = 91,669.37

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Double scale
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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.