Home / 261,390.24-392,251.41-111,631.77

Finding the Fourth Proportional to 261,390.24, 392,251.41 and 111,631.77

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Solution

The fourth proportional to 261,390.24, 392,251.41 and 111,631.77 is: 167,518.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,390.24 : 392,251.41 = 111,631.77 : x
  2. Step 2: Convert to fraction form
    261,390.24/392,251.41 = 111,631.77/x
  3. Step 3: Cross multiply
    261,390.24x = 392,251.41 × 111,631.77
  4. Step 4: Simplify right side
    261,390.24x = 43,787,719,183.30
  5. Step 5: Solve for x
    x = 43,787,719,183.30/261,390.24
  6. Step 6: Final answer
    x = 167,518.57

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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.