Home / 120,247.20-180,338.40-36,007.20

Finding the Fourth Proportional to 120,247.20, 180,338.40 and 36,007.20

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Solution

The fourth proportional to 120,247.20, 180,338.40 and 36,007.20 is: 54,001.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,247.20 : 180,338.40 = 36,007.20 : x
  2. Step 2: Convert to fraction form
    120,247.20/180,338.40 = 36,007.20/x
  3. Step 3: Cross multiply
    120,247.20x = 180,338.40 × 36,007.20
  4. Step 4: Simplify right side
    120,247.20x = 6,493,480,836.48
  5. Step 5: Solve for x
    x = 6,493,480,836.48/120,247.20
  6. Step 6: Final answer
    x = 54,001.10

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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.