Home / 205,913.67-284,145.19-115,248.88

Finding the Fourth Proportional to 205,913.67, 284,145.19 and 115,248.88

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Solution

The fourth proportional to 205,913.67, 284,145.19 and 115,248.88 is: 159,034.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,913.67 : 284,145.19 = 115,248.88 : x
  2. Step 2: Convert to fraction form
    205,913.67/284,145.19 = 115,248.88/x
  3. Step 3: Cross multiply
    205,913.67x = 284,145.19 × 115,248.88
  4. Step 4: Simplify right side
    205,913.67x = 32,747,414,904.89
  5. Step 5: Solve for x
    x = 32,747,414,904.89/205,913.67
  6. Step 6: Final answer
    x = 159,034.68

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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.