Home / 115,657.11-159,585.98-64,670.85

Finding the Fourth Proportional to 115,657.11, 159,585.98 and 64,670.85

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Solution

The fourth proportional to 115,657.11, 159,585.98 and 64,670.85 is: 89,234.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,657.11 : 159,585.98 = 64,670.85 : x
  2. Step 2: Convert to fraction form
    115,657.11/159,585.98 = 64,670.85/x
  3. Step 3: Cross multiply
    115,657.11x = 159,585.98 × 64,670.85
  4. Step 4: Simplify right side
    115,657.11x = 10,320,560,651.33
  5. Step 5: Solve for x
    x = 10,320,560,651.33/115,657.11
  6. Step 6: Final answer
    x = 89,234.12

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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.