Home / 165,989.25-229,065.17-90,537.75

Finding the Fourth Proportional to 165,989.25, 229,065.17 and 90,537.75

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Solution

The fourth proportional to 165,989.25, 229,065.17 and 90,537.75 is: 124,942.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,989.25 : 229,065.17 = 90,537.75 : x
  2. Step 2: Convert to fraction form
    165,989.25/229,065.17 = 90,537.75/x
  3. Step 3: Cross multiply
    165,989.25x = 229,065.17 × 90,537.75
  4. Step 4: Simplify right side
    165,989.25x = 20,739,044,642.48
  5. Step 5: Solve for x
    x = 20,739,044,642.48/165,989.25
  6. Step 6: Final answer
    x = 124,942.10

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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.