Home / 89,621.70-134,432.55-88,239.30

Finding the Fourth Proportional to 89,621.70, 134,432.55 and 88,239.30

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Solution

The fourth proportional to 89,621.70, 134,432.55 and 88,239.30 is: 132,358.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,621.70 : 134,432.55 = 88,239.30 : x
  2. Step 2: Convert to fraction form
    89,621.70/134,432.55 = 88,239.30/x
  3. Step 3: Cross multiply
    89,621.70x = 134,432.55 × 88,239.30
  4. Step 4: Simplify right side
    89,621.70x = 11,862,234,109.22
  5. Step 5: Solve for x
    x = 11,862,234,109.22/89,621.70
  6. Step 6: Final answer
    x = 132,358.95

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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.