Home / 231,044.30-318,837.62-129,071.22

Finding the Fourth Proportional to 231,044.30, 318,837.62 and 129,071.22

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Solution

The fourth proportional to 231,044.30, 318,837.62 and 129,071.22 is: 178,116.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,044.30 : 318,837.62 = 129,071.22 : x
  2. Step 2: Convert to fraction form
    231,044.30/318,837.62 = 129,071.22/x
  3. Step 3: Cross multiply
    231,044.30x = 318,837.62 × 129,071.22
  4. Step 4: Simplify right side
    231,044.30x = 41,152,760,789.77
  5. Step 5: Solve for x
    x = 41,152,760,789.77/231,044.30
  6. Step 6: Final answer
    x = 178,116.32

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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.