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Finding the Fourth Proportional to 88,560.60, 132,840.90 and 79,812.60

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Solution

The fourth proportional to 88,560.60, 132,840.90 and 79,812.60 is: 119,718.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,560.60 : 132,840.90 = 79,812.60 : x
  2. Step 2: Convert to fraction form
    88,560.60/132,840.90 = 79,812.60/x
  3. Step 3: Cross multiply
    88,560.60x = 132,840.90 × 79,812.60
  4. Step 4: Simplify right side
    88,560.60x = 10,602,377,615.34
  5. Step 5: Solve for x
    x = 10,602,377,615.34/88,560.60
  6. Step 6: Final answer
    x = 119,718.90

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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.