Home / 134,379.92-185,405.82-86,660.66

Finding the Fourth Proportional to 134,379.92, 185,405.82 and 86,660.66

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Solution

The fourth proportional to 134,379.92, 185,405.82 and 86,660.66 is: 119,566.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,379.92 : 185,405.82 = 86,660.66 : x
  2. Step 2: Convert to fraction form
    134,379.92/185,405.82 = 86,660.66/x
  3. Step 3: Cross multiply
    134,379.92x = 185,405.82 × 86,660.66
  4. Step 4: Simplify right side
    134,379.92x = 16,067,390,729.04
  5. Step 5: Solve for x
    x = 16,067,390,729.04/134,379.92
  6. Step 6: Final answer
    x = 119,566.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.