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Finding the Fourth Proportional to 97,565.60, 146,521.20 and 75,432.80

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Solution

The fourth proportional to 97,565.60, 146,521.20 and 75,432.80 is: 113,282.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,565.60 : 146,521.20 = 75,432.80 : x
  2. Step 2: Convert to fraction form
    97,565.60/146,521.20 = 75,432.80/x
  3. Step 3: Cross multiply
    97,565.60x = 146,521.20 × 75,432.80
  4. Step 4: Simplify right side
    97,565.60x = 11,052,504,375.36
  5. Step 5: Solve for x
    x = 11,052,504,375.36/97,565.60
  6. Step 6: Final answer
    x = 113,282.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.