Home / 186,885.20-280,364.72-68,557.56

Finding the Fourth Proportional to 186,885.20, 280,364.72 and 68,557.56

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Solution

The fourth proportional to 186,885.20, 280,364.72 and 68,557.56 is: 102,849.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,885.20 : 280,364.72 = 68,557.56 : x
  2. Step 2: Convert to fraction form
    186,885.20/280,364.72 = 68,557.56/x
  3. Step 3: Cross multiply
    186,885.20x = 280,364.72 × 68,557.56
  4. Step 4: Simplify right side
    186,885.20x = 19,221,121,113.28
  5. Step 5: Solve for x
    x = 19,221,121,113.28/186,885.20
  6. Step 6: Final answer
    x = 102,849.88

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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.