Home / 161,921.97-242,669.71-90,843.25

Finding the Fourth Proportional to 161,921.97, 242,669.71 and 90,843.25

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Solution

The fourth proportional to 161,921.97, 242,669.71 and 90,843.25 is: 136,145.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,921.97 : 242,669.71 = 90,843.25 : x
  2. Step 2: Convert to fraction form
    161,921.97/242,669.71 = 90,843.25/x
  3. Step 3: Cross multiply
    161,921.97x = 242,669.71 × 90,843.25
  4. Step 4: Simplify right side
    161,921.97x = 22,044,905,132.96
  5. Step 5: Solve for x
    x = 22,044,905,132.96/161,921.97
  6. Step 6: Final answer
    x = 136,145.24

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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.