Home / 231,174.03-319,013.80-129,199.89

Finding the Fourth Proportional to 231,174.03, 319,013.80 and 129,199.89

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Solution

The fourth proportional to 231,174.03, 319,013.80 and 129,199.89 is: 178,292.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,174.03 : 319,013.80 = 129,199.89 : x
  2. Step 2: Convert to fraction form
    231,174.03/319,013.80 = 129,199.89/x
  3. Step 3: Cross multiply
    231,174.03x = 319,013.80 × 129,199.89
  4. Step 4: Simplify right side
    231,174.03x = 41,216,547,868.48
  5. Step 5: Solve for x
    x = 41,216,547,868.48/231,174.03
  6. Step 6: Final answer
    x = 178,292.29

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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.