Home / 159,061.39-219,508.92-86,469.17

Finding the Fourth Proportional to 159,061.39, 219,508.92 and 86,469.17

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Solution

The fourth proportional to 159,061.39, 219,508.92 and 86,469.17 is: 119,329.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,061.39 : 219,508.92 = 86,469.17 : x
  2. Step 2: Convert to fraction form
    159,061.39/219,508.92 = 86,469.17/x
  3. Step 3: Cross multiply
    159,061.39x = 219,508.92 × 86,469.17
  4. Step 4: Simplify right side
    159,061.39x = 18,980,753,022.45
  5. Step 5: Solve for x
    x = 18,980,753,022.45/159,061.39
  6. Step 6: Final answer
    x = 119,329.73

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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.