Home / 119,702.92-165,187.28-65,986.78

Finding the Fourth Proportional to 119,702.92, 165,187.28 and 65,986.78

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Solution

The fourth proportional to 119,702.92, 165,187.28 and 65,986.78 is: 91,060.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,702.92 : 165,187.28 = 65,986.78 : x
  2. Step 2: Convert to fraction form
    119,702.92/165,187.28 = 65,986.78/x
  3. Step 3: Cross multiply
    119,702.92x = 165,187.28 × 65,986.78
  4. Step 4: Simplify right side
    119,702.92x = 10,900,176,704.16
  5. Step 5: Solve for x
    x = 10,900,176,704.16/119,702.92
  6. Step 6: Final answer
    x = 91,060.24

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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.