Home / 204,031.20-305,828.10-77,622.60

Finding the Fourth Proportional to 204,031.20, 305,828.10 and 77,622.60

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Solution

The fourth proportional to 204,031.20, 305,828.10 and 77,622.60 is: 116,350.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,031.20 : 305,828.10 = 77,622.60 : x
  2. Step 2: Convert to fraction form
    204,031.20/305,828.10 = 77,622.60/x
  3. Step 3: Cross multiply
    204,031.20x = 305,828.10 × 77,622.60
  4. Step 4: Simplify right side
    204,031.20x = 23,739,172,275.06
  5. Step 5: Solve for x
    x = 23,739,172,275.06/204,031.20
  6. Step 6: Final answer
    x = 116,350.70

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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.