Home / 138,026.12-207,039.24-43,263.69

Finding the Fourth Proportional to 138,026.12, 207,039.24 and 43,263.69

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Solution

The fourth proportional to 138,026.12, 207,039.24 and 43,263.69 is: 64,895.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,026.12 : 207,039.24 = 43,263.69 : x
  2. Step 2: Convert to fraction form
    138,026.12/207,039.24 = 43,263.69/x
  3. Step 3: Cross multiply
    138,026.12x = 207,039.24 × 43,263.69
  4. Step 4: Simplify right side
    138,026.12x = 8,957,281,497.20
  5. Step 5: Solve for x
    x = 8,957,281,497.20/138,026.12
  6. Step 6: Final answer
    x = 64,895.55

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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.