Home / 132,729.40-199,401.30-91,257.40

Finding the Fourth Proportional to 132,729.40, 199,401.30 and 91,257.40

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Solution

The fourth proportional to 132,729.40, 199,401.30 and 91,257.40 is: 137,097.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,729.40 : 199,401.30 = 91,257.40 : x
  2. Step 2: Convert to fraction form
    132,729.40/199,401.30 = 91,257.40/x
  3. Step 3: Cross multiply
    132,729.40x = 199,401.30 × 91,257.40
  4. Step 4: Simplify right side
    132,729.40x = 18,196,844,194.62
  5. Step 5: Solve for x
    x = 18,196,844,194.62/132,729.40
  6. Step 6: Final answer
    x = 137,097.31

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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.