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Finding the Fourth Proportional to 199,357.83, 299,233.56 and 87,115.52

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Solution

The fourth proportional to 199,357.83, 299,233.56 and 87,115.52 is: 130,759.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,357.83 : 299,233.56 = 87,115.52 : x
  2. Step 2: Convert to fraction form
    199,357.83/299,233.56 = 87,115.52/x
  3. Step 3: Cross multiply
    199,357.83x = 299,233.56 × 87,115.52
  4. Step 4: Simplify right side
    199,357.83x = 26,067,885,684.68
  5. Step 5: Solve for x
    x = 26,067,885,684.68/199,357.83
  6. Step 6: Final answer
    x = 130,759.28

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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.