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Finding the Fourth Proportional to 148,170.92, 204,480.66 and 81,102.92

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Solution

The fourth proportional to 148,170.92, 204,480.66 and 81,102.92 is: 111,924.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,170.92 : 204,480.66 = 81,102.92 : x
  2. Step 2: Convert to fraction form
    148,170.92/204,480.66 = 81,102.92/x
  3. Step 3: Cross multiply
    148,170.92x = 204,480.66 × 81,102.92
  4. Step 4: Simplify right side
    148,170.92x = 16,583,978,609.53
  5. Step 5: Solve for x
    x = 16,583,978,609.53/148,170.92
  6. Step 6: Final answer
    x = 111,924.65

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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.