Home / 89,732.40-134,598.60-68,737.20

Finding the Fourth Proportional to 89,732.40, 134,598.60 and 68,737.20

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Solution

The fourth proportional to 89,732.40, 134,598.60 and 68,737.20 is: 103,105.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,732.40 : 134,598.60 = 68,737.20 : x
  2. Step 2: Convert to fraction form
    89,732.40/134,598.60 = 68,737.20/x
  3. Step 3: Cross multiply
    89,732.40x = 134,598.60 × 68,737.20
  4. Step 4: Simplify right side
    89,732.40x = 9,251,930,887.92
  5. Step 5: Solve for x
    x = 9,251,930,887.92/89,732.40
  6. Step 6: Final answer
    x = 103,105.80

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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.