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Finding the Fourth Proportional to 101,505.75, 152,257.78 and 79,337.76

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Solution

The fourth proportional to 101,505.75, 152,257.78 and 79,337.76 is: 119,005.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,505.75 : 152,257.78 = 79,337.76 : x
  2. Step 2: Convert to fraction form
    101,505.75/152,257.78 = 79,337.76/x
  3. Step 3: Cross multiply
    101,505.75x = 152,257.78 × 79,337.76
  4. Step 4: Simplify right side
    101,505.75x = 12,079,790,926.30
  5. Step 5: Solve for x
    x = 12,079,790,926.30/101,505.75
  6. Step 6: Final answer
    x = 119,005.98

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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.