Home / 138,054.08-207,081.42-38,214.56

Finding the Fourth Proportional to 138,054.08, 207,081.42 and 38,214.56

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Solution

The fourth proportional to 138,054.08, 207,081.42 and 38,214.56 is: 57,321.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,054.08 : 207,081.42 = 38,214.56 : x
  2. Step 2: Convert to fraction form
    138,054.08/207,081.42 = 38,214.56/x
  3. Step 3: Cross multiply
    138,054.08x = 207,081.42 × 38,214.56
  4. Step 4: Simplify right side
    138,054.08x = 7,913,525,723.87
  5. Step 5: Solve for x
    x = 7,913,525,723.87/138,054.08
  6. Step 6: Final answer
    x = 57,321.92

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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.