Home / 100,268.30-138,366.29-59,958.05

Finding the Fourth Proportional to 100,268.30, 138,366.29 and 59,958.05

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Solution

The fourth proportional to 100,268.30, 138,366.29 and 59,958.05 is: 82,739.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,268.30 : 138,366.29 = 59,958.05 : x
  2. Step 2: Convert to fraction form
    100,268.30/138,366.29 = 59,958.05/x
  3. Step 3: Cross multiply
    100,268.30x = 138,366.29 × 59,958.05
  4. Step 4: Simplify right side
    100,268.30x = 8,296,172,392.20
  5. Step 5: Solve for x
    x = 8,296,172,392.20/100,268.30
  6. Step 6: Final answer
    x = 82,739.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.