Home / 172,597.38-238,061.66-115,207.75

Finding the Fourth Proportional to 172,597.38, 238,061.66 and 115,207.75

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Solution

The fourth proportional to 172,597.38, 238,061.66 and 115,207.75 is: 158,904.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,597.38 : 238,061.66 = 115,207.75 : x
  2. Step 2: Convert to fraction form
    172,597.38/238,061.66 = 115,207.75/x
  3. Step 3: Cross multiply
    172,597.38x = 238,061.66 × 115,207.75
  4. Step 4: Simplify right side
    172,597.38x = 27,426,548,209.87
  5. Step 5: Solve for x
    x = 27,426,548,209.87/172,597.38
  6. Step 6: Final answer
    x = 158,904.78

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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.