Home / 86,849.96-130,078.11-68,012.60

Finding the Fourth Proportional to 86,849.96, 130,078.11 and 68,012.60

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Solution

The fourth proportional to 86,849.96, 130,078.11 and 68,012.60 is: 101,864.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,849.96 : 130,078.11 = 68,012.60 : x
  2. Step 2: Convert to fraction form
    86,849.96/130,078.11 = 68,012.60/x
  3. Step 3: Cross multiply
    86,849.96x = 130,078.11 × 68,012.60
  4. Step 4: Simplify right side
    86,849.96x = 8,846,950,789.38
  5. Step 5: Solve for x
    x = 8,846,950,789.38/86,849.96
  6. Step 6: Final answer
    x = 101,864.76

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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.