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Finding the Fourth Proportional to 88,672.60, 132,624.90 and 79,379.80

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Solution

The fourth proportional to 88,672.60, 132,624.90 and 79,379.80 is: 118,725.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,672.60 : 132,624.90 = 79,379.80 : x
  2. Step 2: Convert to fraction form
    88,672.60/132,624.90 = 79,379.80/x
  3. Step 3: Cross multiply
    88,672.60x = 132,624.90 × 79,379.80
  4. Step 4: Simplify right side
    88,672.60x = 10,527,738,037.02
  5. Step 5: Solve for x
    x = 10,527,738,037.02/88,672.60
  6. Step 6: Final answer
    x = 118,725.94

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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.