Home / 115,977.90-160,046.78-68,234.32

Finding the Fourth Proportional to 115,977.90, 160,046.78 and 68,234.32

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Solution

The fourth proportional to 115,977.90, 160,046.78 and 68,234.32 is: 94,161.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,977.90 : 160,046.78 = 68,234.32 : x
  2. Step 2: Convert to fraction form
    115,977.90/160,046.78 = 68,234.32/x
  3. Step 3: Cross multiply
    115,977.90x = 160,046.78 × 68,234.32
  4. Step 4: Simplify right side
    115,977.90x = 10,920,682,060.08
  5. Step 5: Solve for x
    x = 10,920,682,060.08/115,977.90
  6. Step 6: Final answer
    x = 94,161.75

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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.