Home / 151,581.48-209,183.92-83,601.20

Finding the Fourth Proportional to 151,581.48, 209,183.92 and 83,601.20

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Solution

The fourth proportional to 151,581.48, 209,183.92 and 83,601.20 is: 115,370.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,581.48 : 209,183.92 = 83,601.20 : x
  2. Step 2: Convert to fraction form
    151,581.48/209,183.92 = 83,601.20/x
  3. Step 3: Cross multiply
    151,581.48x = 209,183.92 × 83,601.20
  4. Step 4: Simplify right side
    151,581.48x = 17,488,026,732.70
  5. Step 5: Solve for x
    x = 17,488,026,732.70/151,581.48
  6. Step 6: Final answer
    x = 115,370.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.