Home / 274,800.40-412,225.20-75,121.83

Finding the Fourth Proportional to 274,800.40, 412,225.20 and 75,121.83

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Solution

The fourth proportional to 274,800.40, 412,225.20 and 75,121.83 is: 112,689.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,800.40 : 412,225.20 = 75,121.83 : x
  2. Step 2: Convert to fraction form
    274,800.40/412,225.20 = 75,121.83/x
  3. Step 3: Cross multiply
    274,800.40x = 412,225.20 × 75,121.83
  4. Step 4: Simplify right side
    274,800.40x = 30,967,111,396.12
  5. Step 5: Solve for x
    x = 30,967,111,396.12/274,800.40
  6. Step 6: Final answer
    x = 112,689.47

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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.