Home / 138,048.18-207,066.33-43,276.25

Finding the Fourth Proportional to 138,048.18, 207,066.33 and 43,276.25

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Solution

The fourth proportional to 138,048.18, 207,066.33 and 43,276.25 is: 64,912.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,048.18 : 207,066.33 = 43,276.25 : x
  2. Step 2: Convert to fraction form
    138,048.18/207,066.33 = 43,276.25/x
  3. Step 3: Cross multiply
    138,048.18x = 207,066.33 × 43,276.25
  4. Step 4: Simplify right side
    138,048.18x = 8,961,053,228.33
  5. Step 5: Solve for x
    x = 8,961,053,228.33/138,048.18
  6. Step 6: Final answer
    x = 64,912.51

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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.