Home / 132,823.80-199,235.70-80,206.20

Finding the Fourth Proportional to 132,823.80, 199,235.70 and 80,206.20

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Solution

The fourth proportional to 132,823.80, 199,235.70 and 80,206.20 is: 120,309.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,823.80 : 199,235.70 = 80,206.20 : x
  2. Step 2: Convert to fraction form
    132,823.80/199,235.70 = 80,206.20/x
  3. Step 3: Cross multiply
    132,823.80x = 199,235.70 × 80,206.20
  4. Step 4: Simplify right side
    132,823.80x = 15,979,938,401.34
  5. Step 5: Solve for x
    x = 15,979,938,401.34/132,823.80
  6. Step 6: Final answer
    x = 120,309.30

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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.