Home / 120,642.24-180,934.20-50,574

Finding the Fourth Proportional to 120,642.24, 180,934.20 and 50,574

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Solution

The fourth proportional to 120,642.24, 180,934.20 and 50,574 is: 75,848.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,642.24 : 180,934.20 = 50,574 : x
  2. Step 2: Convert to fraction form
    120,642.24/180,934.20 = 50,574/x
  3. Step 3: Cross multiply
    120,642.24x = 180,934.20 × 50,574
  4. Step 4: Simplify right side
    120,642.24x = 9,150,566,230.80
  5. Step 5: Solve for x
    x = 9,150,566,230.80/120,642.24
  6. Step 6: Final answer
    x = 75,848.78

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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.