Home / 127,171.19-175,514.51-76,186.10

Finding the Fourth Proportional to 127,171.19, 175,514.51 and 76,186.10

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Solution

The fourth proportional to 127,171.19, 175,514.51 and 76,186.10 is: 105,147.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,171.19 : 175,514.51 = 76,186.10 : x
  2. Step 2: Convert to fraction form
    127,171.19/175,514.51 = 76,186.10/x
  3. Step 3: Cross multiply
    127,171.19x = 175,514.51 × 76,186.10
  4. Step 4: Simplify right side
    127,171.19x = 13,371,766,639.56
  5. Step 5: Solve for x
    x = 13,371,766,639.56/127,171.19
  6. Step 6: Final answer
    x = 105,147.76

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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.