Home / 138,288.23-207,464.42-43,515.95

Finding the Fourth Proportional to 138,288.23, 207,464.42 and 43,515.95

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Solution

The fourth proportional to 138,288.23, 207,464.42 and 43,515.95 is: 65,284.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,288.23 : 207,464.42 = 43,515.95 : x
  2. Step 2: Convert to fraction form
    138,288.23/207,464.42 = 43,515.95/x
  3. Step 3: Cross multiply
    138,288.23x = 207,464.42 × 43,515.95
  4. Step 4: Simplify right side
    138,288.23x = 9,028,010,398.97
  5. Step 5: Solve for x
    x = 9,028,010,398.97/138,288.23
  6. Step 6: Final answer
    x = 65,284.01

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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.