Home / 163,615.38-225,654.03-115,377.90

Finding the Fourth Proportional to 163,615.38, 225,654.03 and 115,377.90

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Solution

The fourth proportional to 163,615.38, 225,654.03 and 115,377.90 is: 159,126.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,615.38 : 225,654.03 = 115,377.90 : x
  2. Step 2: Convert to fraction form
    163,615.38/225,654.03 = 115,377.90/x
  3. Step 3: Cross multiply
    163,615.38x = 225,654.03 × 115,377.90
  4. Step 4: Simplify right side
    163,615.38x = 26,035,488,107.94
  5. Step 5: Solve for x
    x = 26,035,488,107.94/163,615.38
  6. Step 6: Final answer
    x = 159,126.17

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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.