Home / 89,723.40-134,585.10-73,320.90

Finding the Fourth Proportional to 89,723.40, 134,585.10 and 73,320.90

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Solution

The fourth proportional to 89,723.40, 134,585.10 and 73,320.90 is: 109,981.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,723.40 : 134,585.10 = 73,320.90 : x
  2. Step 2: Convert to fraction form
    89,723.40/134,585.10 = 73,320.90/x
  3. Step 3: Cross multiply
    89,723.40x = 134,585.10 × 73,320.90
  4. Step 4: Simplify right side
    89,723.40x = 9,867,900,658.59
  5. Step 5: Solve for x
    x = 9,867,900,658.59/89,723.40
  6. Step 6: Final answer
    x = 109,981.35

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Similar ratio
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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.