Home / 132,972.80-199,459.20-131,806.40

Finding the Fourth Proportional to 132,972.80, 199,459.20 and 131,806.40

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Solution

The fourth proportional to 132,972.80, 199,459.20 and 131,806.40 is: 197,709.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,972.80 : 199,459.20 = 131,806.40 : x
  2. Step 2: Convert to fraction form
    132,972.80/199,459.20 = 131,806.40/x
  3. Step 3: Cross multiply
    132,972.80x = 199,459.20 × 131,806.40
  4. Step 4: Simplify right side
    132,972.80x = 26,289,999,098.88
  5. Step 5: Solve for x
    x = 26,289,999,098.88/132,972.80
  6. Step 6: Final answer
    x = 197,709.60

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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.