Home / 205,983.72-284,234.04-115,327.08

Finding the Fourth Proportional to 205,983.72, 284,234.04 and 115,327.08

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Solution

The fourth proportional to 205,983.72, 284,234.04 and 115,327.08 is: 159,138.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,983.72 : 284,234.04 = 115,327.08 : x
  2. Step 2: Convert to fraction form
    205,983.72/284,234.04 = 115,327.08/x
  3. Step 3: Cross multiply
    205,983.72x = 284,234.04 × 115,327.08
  4. Step 4: Simplify right side
    205,983.72x = 32,779,881,869.80
  5. Step 5: Solve for x
    x = 32,779,881,869.80/205,983.72
  6. Step 6: Final answer
    x = 159,138.22

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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.