Home / 138,895.41-207,749.78-115,959.85

Finding the Fourth Proportional to 138,895.41, 207,749.78 and 115,959.85

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Solution

The fourth proportional to 138,895.41, 207,749.78 and 115,959.85 is: 173,444.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,895.41 : 207,749.78 = 115,959.85 : x
  2. Step 2: Convert to fraction form
    138,895.41/207,749.78 = 115,959.85/x
  3. Step 3: Cross multiply
    138,895.41x = 207,749.78 × 115,959.85
  4. Step 4: Simplify right side
    138,895.41x = 24,090,633,616.23
  5. Step 5: Solve for x
    x = 24,090,633,616.23/138,895.41
  6. Step 6: Final answer
    x = 173,444.42

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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.