Home / 101,818.20-140,581.98-67,906.76

Finding the Fourth Proportional to 101,818.20, 140,581.98 and 67,906.76

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Solution

The fourth proportional to 101,818.20, 140,581.98 and 67,906.76 is: 93,759.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,818.20 : 140,581.98 = 67,906.76 : x
  2. Step 2: Convert to fraction form
    101,818.20/140,581.98 = 67,906.76/x
  3. Step 3: Cross multiply
    101,818.20x = 140,581.98 × 67,906.76
  4. Step 4: Simplify right side
    101,818.20x = 9,546,466,776.18
  5. Step 5: Solve for x
    x = 9,546,466,776.18/101,818.20
  6. Step 6: Final answer
    x = 93,759.92

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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.