Home / 120,434.20-180,824.10-67,946.20

Finding the Fourth Proportional to 120,434.20, 180,824.10 and 67,946.20

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Solution

The fourth proportional to 120,434.20, 180,824.10 and 67,946.20 is: 102,016.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,434.20 : 180,824.10 = 67,946.20 : x
  2. Step 2: Convert to fraction form
    120,434.20/180,824.10 = 67,946.20/x
  3. Step 3: Cross multiply
    120,434.20x = 180,824.10 × 67,946.20
  4. Step 4: Simplify right side
    120,434.20x = 12,286,310,463.42
  5. Step 5: Solve for x
    x = 12,286,310,463.42/120,434.20
  6. Step 6: Final answer
    x = 102,016.79

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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.