Home / 185,366.20-278,049.30-115,209.40

Finding the Fourth Proportional to 185,366.20, 278,049.30 and 115,209.40

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Solution

The fourth proportional to 185,366.20, 278,049.30 and 115,209.40 is: 172,814.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,366.20 : 278,049.30 = 115,209.40 : x
  2. Step 2: Convert to fraction form
    185,366.20/278,049.30 = 115,209.40/x
  3. Step 3: Cross multiply
    185,366.20x = 278,049.30 × 115,209.40
  4. Step 4: Simplify right side
    185,366.20x = 32,033,893,023.42
  5. Step 5: Solve for x
    x = 32,033,893,023.42/185,366.20
  6. Step 6: Final answer
    x = 172,814.10

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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.