Home / 169,331.60-254,105.40-80,685.20

Finding the Fourth Proportional to 169,331.60, 254,105.40 and 80,685.20

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Solution

The fourth proportional to 169,331.60, 254,105.40 and 80,685.20 is: 121,079.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,331.60 : 254,105.40 = 80,685.20 : x
  2. Step 2: Convert to fraction form
    169,331.60/254,105.40 = 80,685.20/x
  3. Step 3: Cross multiply
    169,331.60x = 254,105.40 × 80,685.20
  4. Step 4: Simplify right side
    169,331.60x = 20,502,545,020.08
  5. Step 5: Solve for x
    x = 20,502,545,020.08/169,331.60
  6. Step 6: Final answer
    x = 121,079.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.