Home / 169,963.38-254,557.08-81,279.45

Finding the Fourth Proportional to 169,963.38, 254,557.08 and 81,279.45

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Solution

The fourth proportional to 169,963.38, 254,557.08 and 81,279.45 is: 121,733.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,963.38 : 254,557.08 = 81,279.45 : x
  2. Step 2: Convert to fraction form
    169,963.38/254,557.08 = 81,279.45/x
  3. Step 3: Cross multiply
    169,963.38x = 254,557.08 × 81,279.45
  4. Step 4: Simplify right side
    169,963.38x = 20,690,259,456.01
  5. Step 5: Solve for x
    x = 20,690,259,456.01/169,963.38
  6. Step 6: Final answer
    x = 121,733.63

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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.