Home / 138,424.07-207,464.78-98,379.22

Finding the Fourth Proportional to 138,424.07, 207,464.78 and 98,379.22

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Solution

The fourth proportional to 138,424.07, 207,464.78 and 98,379.22 is: 147,447.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,424.07 : 207,464.78 = 98,379.22 : x
  2. Step 2: Convert to fraction form
    138,424.07/207,464.78 = 98,379.22/x
  3. Step 3: Cross multiply
    138,424.07x = 207,464.78 × 98,379.22
  4. Step 4: Simplify right side
    138,424.07x = 20,410,223,233.87
  5. Step 5: Solve for x
    x = 20,410,223,233.87/138,424.07
  6. Step 6: Final answer
    x = 147,447.07

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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.