Home / 551,142.12-826,713.29-172,095.38

Finding the Fourth Proportional to 551,142.12, 826,713.29 and 172,095.38

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Solution

The fourth proportional to 551,142.12, 826,713.29 and 172,095.38 is: 258,143.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,142.12 : 826,713.29 = 172,095.38 : x
  2. Step 2: Convert to fraction form
    551,142.12/826,713.29 = 172,095.38/x
  3. Step 3: Cross multiply
    551,142.12x = 826,713.29 × 172,095.38
  4. Step 4: Simplify right side
    551,142.12x = 142,273,540,872.67
  5. Step 5: Solve for x
    x = 142,273,540,872.67/551,142.12
  6. Step 6: Final answer
    x = 258,143.11

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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.