Home / 138,112.43-207,177.41-43,346.36

Finding the Fourth Proportional to 138,112.43, 207,177.41 and 43,346.36

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Solution

The fourth proportional to 138,112.43, 207,177.41 and 43,346.36 is: 65,022.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,112.43 : 207,177.41 = 43,346.36 : x
  2. Step 2: Convert to fraction form
    138,112.43/207,177.41 = 43,346.36/x
  3. Step 3: Cross multiply
    138,112.43x = 207,177.41 × 43,346.36
  4. Step 4: Simplify right side
    138,112.43x = 8,980,385,345.11
  5. Step 5: Solve for x
    x = 8,980,385,345.11/138,112.43
  6. Step 6: Final answer
    x = 65,022.28

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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.