Home / 123,582.30-185,375.27-85,594.11

Finding the Fourth Proportional to 123,582.30, 185,375.27 and 85,594.11

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Solution

The fourth proportional to 123,582.30, 185,375.27 and 85,594.11 is: 128,392.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,582.30 : 185,375.27 = 85,594.11 : x
  2. Step 2: Convert to fraction form
    123,582.30/185,375.27 = 85,594.11/x
  3. Step 3: Cross multiply
    123,582.30x = 185,375.27 × 85,594.11
  4. Step 4: Simplify right side
    123,582.30x = 15,867,031,251.66
  5. Step 5: Solve for x
    x = 15,867,031,251.66/123,582.30
  6. Step 6: Final answer
    x = 128,392.43

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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.