Home / 138,226.80-207,340.05-43,465.31

Finding the Fourth Proportional to 138,226.80, 207,340.05 and 43,465.31

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Solution

The fourth proportional to 138,226.80, 207,340.05 and 43,465.31 is: 65,197.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,226.80 : 207,340.05 = 43,465.31 : x
  2. Step 2: Convert to fraction form
    138,226.80/207,340.05 = 43,465.31/x
  3. Step 3: Cross multiply
    138,226.80x = 207,340.05 × 43,465.31
  4. Step 4: Simplify right side
    138,226.80x = 9,012,099,452.49
  5. Step 5: Solve for x
    x = 9,012,099,452.49/138,226.80
  6. Step 6: Final answer
    x = 65,197.92

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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.