Home / 138,183.60-207,263.48-84,134.28

Finding the Fourth Proportional to 138,183.60, 207,263.48 and 84,134.28

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Solution

The fourth proportional to 138,183.60, 207,263.48 and 84,134.28 is: 126,194.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,183.60 : 207,263.48 = 84,134.28 : x
  2. Step 2: Convert to fraction form
    138,183.60/207,263.48 = 84,134.28/x
  3. Step 3: Cross multiply
    138,183.60x = 207,263.48 × 84,134.28
  4. Step 4: Simplify right side
    138,183.60x = 17,437,963,660.09
  5. Step 5: Solve for x
    x = 17,437,963,660.09/138,183.60
  6. Step 6: Final answer
    x = 126,194.16

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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.