Home / 215,585.47-323,378.21-82,506.52

Finding the Fourth Proportional to 215,585.47, 323,378.21 and 82,506.52

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Solution

The fourth proportional to 215,585.47, 323,378.21 and 82,506.52 is: 123,759.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,585.47 : 323,378.21 = 82,506.52 : x
  2. Step 2: Convert to fraction form
    215,585.47/323,378.21 = 82,506.52/x
  3. Step 3: Cross multiply
    215,585.47x = 323,378.21 × 82,506.52
  4. Step 4: Simplify right side
    215,585.47x = 26,680,810,750.93
  5. Step 5: Solve for x
    x = 26,680,810,750.93/215,585.47
  6. Step 6: Final answer
    x = 123,759.78

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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.