Home / 107,789.66-161,541.20-57,178.26

Finding the Fourth Proportional to 107,789.66, 161,541.20 and 57,178.26

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Solution

The fourth proportional to 107,789.66, 161,541.20 and 57,178.26 is: 85,691.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,789.66 : 161,541.20 = 57,178.26 : x
  2. Step 2: Convert to fraction form
    107,789.66/161,541.20 = 57,178.26/x
  3. Step 3: Cross multiply
    107,789.66x = 161,541.20 × 57,178.26
  4. Step 4: Simplify right side
    107,789.66x = 9,236,644,734.31
  5. Step 5: Solve for x
    x = 9,236,644,734.31/107,789.66
  6. Step 6: Final answer
    x = 85,691.38

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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.