Home / 109,553.76-151,195.20-67,140.48

Finding the Fourth Proportional to 109,553.76, 151,195.20 and 67,140.48

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Solution

The fourth proportional to 109,553.76, 151,195.20 and 67,140.48 is: 92,660.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,553.76 : 151,195.20 = 67,140.48 : x
  2. Step 2: Convert to fraction form
    109,553.76/151,195.20 = 67,140.48/x
  3. Step 3: Cross multiply
    109,553.76x = 151,195.20 × 67,140.48
  4. Step 4: Simplify right side
    109,553.76x = 10,151,318,301.70
  5. Step 5: Solve for x
    x = 10,151,318,301.70/109,553.76
  6. Step 6: Final answer
    x = 92,660.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.