Home / 120,979.13-166,951.19-67,987.13

Finding the Fourth Proportional to 120,979.13, 166,951.19 and 67,987.13

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Solution

The fourth proportional to 120,979.13, 166,951.19 and 67,987.13 is: 93,822.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,979.13 : 166,951.19 = 67,987.13 : x
  2. Step 2: Convert to fraction form
    120,979.13/166,951.19 = 67,987.13/x
  3. Step 3: Cross multiply
    120,979.13x = 166,951.19 × 67,987.13
  4. Step 4: Simplify right side
    120,979.13x = 11,350,531,593.40
  5. Step 5: Solve for x
    x = 11,350,531,593.40/120,979.13
  6. Step 6: Final answer
    x = 93,822.23

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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.