Home / 215,356.62-322,679.49-125,146.11

Finding the Fourth Proportional to 215,356.62, 322,679.49 and 125,146.11

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Solution

The fourth proportional to 215,356.62, 322,679.49 and 125,146.11 is: 187,512.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,356.62 : 322,679.49 = 125,146.11 : x
  2. Step 2: Convert to fraction form
    215,356.62/322,679.49 = 125,146.11/x
  3. Step 3: Cross multiply
    215,356.62x = 322,679.49 × 125,146.11
  4. Step 4: Simplify right side
    215,356.62x = 40,382,082,950.28
  5. Step 5: Solve for x
    x = 40,382,082,950.28/215,356.62
  6. Step 6: Final answer
    x = 187,512.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.