Home / 168,001.73-251,915.10-79,231.40

Finding the Fourth Proportional to 168,001.73, 251,915.10 and 79,231.40

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Solution

The fourth proportional to 168,001.73, 251,915.10 and 79,231.40 is: 118,805.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,001.73 : 251,915.10 = 79,231.40 : x
  2. Step 2: Convert to fraction form
    168,001.73/251,915.10 = 79,231.40/x
  3. Step 3: Cross multiply
    168,001.73x = 251,915.10 × 79,231.40
  4. Step 4: Simplify right side
    168,001.73x = 19,959,585,442.13
  5. Step 5: Solve for x
    x = 19,959,585,442.13/168,001.73
  6. Step 6: Final answer
    x = 118,805.83

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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.