Home / 127,971.38-176,604.26-71,381.54

Finding the Fourth Proportional to 127,971.38, 176,604.26 and 71,381.54

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Solution

The fourth proportional to 127,971.38, 176,604.26 and 71,381.54 is: 98,508.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,971.38 : 176,604.26 = 71,381.54 : x
  2. Step 2: Convert to fraction form
    127,971.38/176,604.26 = 71,381.54/x
  3. Step 3: Cross multiply
    127,971.38x = 176,604.26 × 71,381.54
  4. Step 4: Simplify right side
    127,971.38x = 12,606,284,049.36
  5. Step 5: Solve for x
    x = 12,606,284,049.36/127,971.38
  6. Step 6: Final answer
    x = 98,508.62

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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.