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Finding the Fourth Proportional to 89,149.77, 132,938.93 and 88,350.30

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Solution

The fourth proportional to 89,149.77, 132,938.93 and 88,350.30 is: 131,746.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,149.77 : 132,938.93 = 88,350.30 : x
  2. Step 2: Convert to fraction form
    89,149.77/132,938.93 = 88,350.30/x
  3. Step 3: Cross multiply
    89,149.77x = 132,938.93 × 88,350.30
  4. Step 4: Simplify right side
    89,149.77x = 11,745,194,568.05
  5. Step 5: Solve for x
    x = 11,745,194,568.05/89,149.77
  6. Step 6: Final answer
    x = 131,746.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.