Home / 158,724.45-219,046.07-87,107.04

Finding the Fourth Proportional to 158,724.45, 219,046.07 and 87,107.04

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Solution

The fourth proportional to 158,724.45, 219,046.07 and 87,107.04 is: 120,211.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,724.45 : 219,046.07 = 87,107.04 : x
  2. Step 2: Convert to fraction form
    158,724.45/219,046.07 = 87,107.04/x
  3. Step 3: Cross multiply
    158,724.45x = 219,046.07 × 87,107.04
  4. Step 4: Simplify right side
    158,724.45x = 19,080,454,781.33
  5. Step 5: Solve for x
    x = 19,080,454,781.33/158,724.45
  6. Step 6: Final answer
    x = 120,211.19

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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.