Home / 138,601.24-207,749.58-54,335.86

Finding the Fourth Proportional to 138,601.24, 207,749.58 and 54,335.86

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Solution

The fourth proportional to 138,601.24, 207,749.58 and 54,335.86 is: 81,444.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,601.24 : 207,749.58 = 54,335.86 : x
  2. Step 2: Convert to fraction form
    138,601.24/207,749.58 = 54,335.86/x
  3. Step 3: Cross multiply
    138,601.24x = 207,749.58 × 54,335.86
  4. Step 4: Simplify right side
    138,601.24x = 11,288,252,093.94
  5. Step 5: Solve for x
    x = 11,288,252,093.94/138,601.24
  6. Step 6: Final answer
    x = 81,444.09

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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.