Home / 137,268.26-205,937.88-80,390.24

Finding the Fourth Proportional to 137,268.26, 205,937.88 and 80,390.24

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Solution

The fourth proportional to 137,268.26, 205,937.88 and 80,390.24 is: 120,606.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,268.26 : 205,937.88 = 80,390.24 : x
  2. Step 2: Convert to fraction form
    137,268.26/205,937.88 = 80,390.24/x
  3. Step 3: Cross multiply
    137,268.26x = 205,937.88 × 80,390.24
  4. Step 4: Simplify right side
    137,268.26x = 16,555,395,598.29
  5. Step 5: Solve for x
    x = 16,555,395,598.29/137,268.26
  6. Step 6: Final answer
    x = 120,606.14

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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.