Home / 119,101.12-164,358.88-65,387.04

Finding the Fourth Proportional to 119,101.12, 164,358.88 and 65,387.04

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Solution

The fourth proportional to 119,101.12, 164,358.88 and 65,387.04 is: 90,233.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,101.12 : 164,358.88 = 65,387.04 : x
  2. Step 2: Convert to fraction form
    119,101.12/164,358.88 = 65,387.04/x
  3. Step 3: Cross multiply
    119,101.12x = 164,358.88 × 65,387.04
  4. Step 4: Simplify right side
    119,101.12x = 10,746,940,660.92
  5. Step 5: Solve for x
    x = 10,746,940,660.92/119,101.12
  6. Step 6: Final answer
    x = 90,233.75

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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.