Home / 138,025.13-207,086.29-67,953.65

Finding the Fourth Proportional to 138,025.13, 207,086.29 and 67,953.65

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Solution

The fourth proportional to 138,025.13, 207,086.29 and 67,953.65 is: 101,954.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,025.13 : 207,086.29 = 67,953.65 : x
  2. Step 2: Convert to fraction form
    138,025.13/207,086.29 = 67,953.65/x
  3. Step 3: Cross multiply
    138,025.13x = 207,086.29 × 67,953.65
  4. Step 4: Simplify right side
    138,025.13x = 14,072,268,065.14
  5. Step 5: Solve for x
    x = 14,072,268,065.14/138,025.13
  6. Step 6: Final answer
    x = 101,954.39

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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.