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Finding the Fourth Proportional to 132,357.60, 198,244.80 and 79,675.20

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Solution

The fourth proportional to 132,357.60, 198,244.80 and 79,675.20 is: 119,337.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,357.60 : 198,244.80 = 79,675.20 : x
  2. Step 2: Convert to fraction form
    132,357.60/198,244.80 = 79,675.20/x
  3. Step 3: Cross multiply
    132,357.60x = 198,244.80 × 79,675.20
  4. Step 4: Simplify right side
    132,357.60x = 15,795,194,088.96
  5. Step 5: Solve for x
    x = 15,795,194,088.96/132,357.60
  6. Step 6: Final answer
    x = 119,337.27

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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.