Home / 149,747.92-206,653.14-81,765.37

Finding the Fourth Proportional to 149,747.92, 206,653.14 and 81,765.37

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Solution

The fourth proportional to 149,747.92, 206,653.14 and 81,765.37 is: 112,836.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,747.92 : 206,653.14 = 81,765.37 : x
  2. Step 2: Convert to fraction form
    149,747.92/206,653.14 = 81,765.37/x
  3. Step 3: Cross multiply
    149,747.92x = 206,653.14 × 81,765.37
  4. Step 4: Simplify right side
    149,747.92x = 16,897,070,712.08
  5. Step 5: Solve for x
    x = 16,897,070,712.08/149,747.92
  6. Step 6: Final answer
    x = 112,836.76

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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.