Home / 185,881.52-278,665.56-80,621.24

Finding the Fourth Proportional to 185,881.52, 278,665.56 and 80,621.24

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Solution

The fourth proportional to 185,881.52, 278,665.56 and 80,621.24 is: 120,863.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,881.52 : 278,665.56 = 80,621.24 : x
  2. Step 2: Convert to fraction form
    185,881.52/278,665.56 = 80,621.24/x
  3. Step 3: Cross multiply
    185,881.52x = 278,665.56 × 80,621.24
  4. Step 4: Simplify right side
    185,881.52x = 22,466,362,992.49
  5. Step 5: Solve for x
    x = 22,466,362,992.49/185,881.52
  6. Step 6: Final answer
    x = 120,863.89

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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.