Home / 172,304.06-258,192.97-72,409.65

Finding the Fourth Proportional to 172,304.06, 258,192.97 and 72,409.65

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Solution

The fourth proportional to 172,304.06, 258,192.97 and 72,409.65 is: 108,503.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,304.06 : 258,192.97 = 72,409.65 : x
  2. Step 2: Convert to fraction form
    172,304.06/258,192.97 = 72,409.65/x
  3. Step 3: Cross multiply
    172,304.06x = 258,192.97 × 72,409.65
  4. Step 4: Simplify right side
    172,304.06x = 18,695,661,440.91
  5. Step 5: Solve for x
    x = 18,695,661,440.91/172,304.06
  6. Step 6: Final answer
    x = 108,503.89

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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.