Home / 111,249.44-166,699.12-86,010.61

Finding the Fourth Proportional to 111,249.44, 166,699.12 and 86,010.61

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Solution

The fourth proportional to 111,249.44, 166,699.12 and 86,010.61 is: 128,880.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,249.44 : 166,699.12 = 86,010.61 : x
  2. Step 2: Convert to fraction form
    111,249.44/166,699.12 = 86,010.61/x
  3. Step 3: Cross multiply
    111,249.44x = 166,699.12 × 86,010.61
  4. Step 4: Simplify right side
    111,249.44x = 14,337,892,900.20
  5. Step 5: Solve for x
    x = 14,337,892,900.20/111,249.44
  6. Step 6: Final answer
    x = 128,880.58

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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.