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Finding the Fourth Proportional to 89,072.60, 133,608.90 and 88,458.20

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Solution

The fourth proportional to 89,072.60, 133,608.90 and 88,458.20 is: 132,687.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,072.60 : 133,608.90 = 88,458.20 : x
  2. Step 2: Convert to fraction form
    89,072.60/133,608.90 = 88,458.20/x
  3. Step 3: Cross multiply
    89,072.60x = 133,608.90 × 88,458.20
  4. Step 4: Simplify right side
    89,072.60x = 11,818,802,797.98
  5. Step 5: Solve for x
    x = 11,818,802,797.98/89,072.60
  6. Step 6: Final answer
    x = 132,687.30

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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.