Home / 149,310.52-206,013.18-84,765.76

Finding the Fourth Proportional to 149,310.52, 206,013.18 and 84,765.76

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Solution

The fourth proportional to 149,310.52, 206,013.18 and 84,765.76 is: 116,956.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,310.52 : 206,013.18 = 84,765.76 : x
  2. Step 2: Convert to fraction form
    149,310.52/206,013.18 = 84,765.76/x
  3. Step 3: Cross multiply
    149,310.52x = 206,013.18 × 84,765.76
  4. Step 4: Simplify right side
    149,310.52x = 17,462,863,772.72
  5. Step 5: Solve for x
    x = 17,462,863,772.72/149,310.52
  6. Step 6: Final answer
    x = 116,956.69

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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.