Home / 131,873.12-181,974.06-74,517.42

Finding the Fourth Proportional to 131,873.12, 181,974.06 and 74,517.42

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Solution

The fourth proportional to 131,873.12, 181,974.06 and 74,517.42 is: 102,827.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,873.12 : 181,974.06 = 74,517.42 : x
  2. Step 2: Convert to fraction form
    131,873.12/181,974.06 = 74,517.42/x
  3. Step 3: Cross multiply
    131,873.12x = 181,974.06 × 74,517.42
  4. Step 4: Simplify right side
    131,873.12x = 13,560,237,458.13
  5. Step 5: Solve for x
    x = 13,560,237,458.13/131,873.12
  6. Step 6: Final answer
    x = 102,827.91

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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.