Home / 147,789.38-203,788.02-99,959.66

Finding the Fourth Proportional to 147,789.38, 203,788.02 and 99,959.66

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Solution

The fourth proportional to 147,789.38, 203,788.02 and 99,959.66 is: 137,835.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,789.38 : 203,788.02 = 99,959.66 : x
  2. Step 2: Convert to fraction form
    147,789.38/203,788.02 = 99,959.66/x
  3. Step 3: Cross multiply
    147,789.38x = 203,788.02 × 99,959.66
  4. Step 4: Simplify right side
    147,789.38x = 20,370,581,191.27
  5. Step 5: Solve for x
    x = 20,370,581,191.27/147,789.38
  6. Step 6: Final answer
    x = 137,835.22

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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.