Home / 205,761.72-283,948.62-115,117.38

Finding the Fourth Proportional to 205,761.72, 283,948.62 and 115,117.38

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Solution

The fourth proportional to 205,761.72, 283,948.62 and 115,117.38 is: 158,860.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,761.72 : 283,948.62 = 115,117.38 : x
  2. Step 2: Convert to fraction form
    205,761.72/283,948.62 = 115,117.38/x
  3. Step 3: Cross multiply
    205,761.72x = 283,948.62 × 115,117.38
  4. Step 4: Simplify right side
    205,761.72x = 32,687,421,189.02
  5. Step 5: Solve for x
    x = 32,687,421,189.02/205,761.72
  6. Step 6: Final answer
    x = 158,860.56

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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.