Home / 250,821.12-376,346.88-108,709.76

Finding the Fourth Proportional to 250,821.12, 376,346.88 and 108,709.76

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Solution

The fourth proportional to 250,821.12, 376,346.88 and 108,709.76 is: 163,114.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,821.12 : 376,346.88 = 108,709.76 : x
  2. Step 2: Convert to fraction form
    250,821.12/376,346.88 = 108,709.76/x
  3. Step 3: Cross multiply
    250,821.12x = 376,346.88 × 108,709.76
  4. Step 4: Simplify right side
    250,821.12x = 40,912,579,001.55
  5. Step 5: Solve for x
    x = 40,912,579,001.55/250,821.12
  6. Step 6: Final answer
    x = 163,114.57

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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.