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Finding the Fourth Proportional to 88,704.20, 133,056.30 and 79,956.20

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Solution

The fourth proportional to 88,704.20, 133,056.30 and 79,956.20 is: 119,934.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,704.20 : 133,056.30 = 79,956.20 : x
  2. Step 2: Convert to fraction form
    88,704.20/133,056.30 = 79,956.20/x
  3. Step 3: Cross multiply
    88,704.20x = 133,056.30 × 79,956.20
  4. Step 4: Simplify right side
    88,704.20x = 10,638,676,134.06
  5. Step 5: Solve for x
    x = 10,638,676,134.06/88,704.20
  6. Step 6: Final answer
    x = 119,934.30

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Similar ratio
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1.5x scale

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.