Home / 204,048.14-306,023.60-85,721.78

Finding the Fourth Proportional to 204,048.14, 306,023.60 and 85,721.78

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Solution

The fourth proportional to 204,048.14, 306,023.60 and 85,721.78 is: 128,562.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,048.14 : 306,023.60 = 85,721.78 : x
  2. Step 2: Convert to fraction form
    204,048.14/306,023.60 = 85,721.78/x
  3. Step 3: Cross multiply
    204,048.14x = 306,023.60 × 85,721.78
  4. Step 4: Simplify right side
    204,048.14x = 26,232,887,714.01
  5. Step 5: Solve for x
    x = 26,232,887,714.01/204,048.14
  6. Step 6: Final answer
    x = 128,562.25

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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.