Home / 99,503.43-137,081.19-69,236.70

Finding the Fourth Proportional to 99,503.43, 137,081.19 and 69,236.70

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Solution

The fourth proportional to 99,503.43, 137,081.19 and 69,236.70 is: 95,384.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,503.43 : 137,081.19 = 69,236.70 : x
  2. Step 2: Convert to fraction form
    99,503.43/137,081.19 = 69,236.70/x
  3. Step 3: Cross multiply
    99,503.43x = 137,081.19 × 69,236.70
  4. Step 4: Simplify right side
    99,503.43x = 9,491,049,227.67
  5. Step 5: Solve for x
    x = 9,491,049,227.67/99,503.43
  6. Step 6: Final answer
    x = 95,384.14

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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.