Home / 229,721.86-317,044.65-129,119.86

Finding the Fourth Proportional to 229,721.86, 317,044.65 and 129,119.86

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Solution

The fourth proportional to 229,721.86, 317,044.65 and 129,119.86 is: 178,201.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,721.86 : 317,044.65 = 129,119.86 : x
  2. Step 2: Convert to fraction form
    229,721.86/317,044.65 = 129,119.86/x
  3. Step 3: Cross multiply
    229,721.86x = 317,044.65 × 129,119.86
  4. Step 4: Simplify right side
    229,721.86x = 40,936,760,821.75
  5. Step 5: Solve for x
    x = 40,936,760,821.75/229,721.86
  6. Step 6: Final answer
    x = 178,201.42

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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.