Home / 186,942.12-280,403.86-68,604.15

Finding the Fourth Proportional to 186,942.12, 280,403.86 and 68,604.15

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Solution

The fourth proportional to 186,942.12, 280,403.86 and 68,604.15 is: 102,902.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,942.12 : 280,403.86 = 68,604.15 : x
  2. Step 2: Convert to fraction form
    186,942.12/280,403.86 = 68,604.15/x
  3. Step 3: Cross multiply
    186,942.12x = 280,403.86 × 68,604.15
  4. Step 4: Simplify right side
    186,942.12x = 19,236,868,472.02
  5. Step 5: Solve for x
    x = 19,236,868,472.02/186,942.12
  6. Step 6: Final answer
    x = 102,902.80

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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.