Home / 137,619.60-206,429.40-132,808.20

Finding the Fourth Proportional to 137,619.60, 206,429.40 and 132,808.20

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Solution

The fourth proportional to 137,619.60, 206,429.40 and 132,808.20 is: 199,212.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,619.60 : 206,429.40 = 132,808.20 : x
  2. Step 2: Convert to fraction form
    137,619.60/206,429.40 = 132,808.20/x
  3. Step 3: Cross multiply
    137,619.60x = 206,429.40 × 132,808.20
  4. Step 4: Simplify right side
    137,619.60x = 27,415,517,041.08
  5. Step 5: Solve for x
    x = 27,415,517,041.08/137,619.60
  6. Step 6: Final answer
    x = 199,212.30

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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.