Home / 185,522.91-278,128.53-129,196.73

Finding the Fourth Proportional to 185,522.91, 278,128.53 and 129,196.73

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Solution

The fourth proportional to 185,522.91, 278,128.53 and 129,196.73 is: 193,686.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,522.91 : 278,128.53 = 129,196.73 : x
  2. Step 2: Convert to fraction form
    185,522.91/278,128.53 = 129,196.73/x
  3. Step 3: Cross multiply
    185,522.91x = 278,128.53 × 129,196.73
  4. Step 4: Simplify right side
    185,522.91x = 35,933,295,205.06
  5. Step 5: Solve for x
    x = 35,933,295,205.06/185,522.91
  6. Step 6: Final answer
    x = 193,686.57

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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.