Home / 111,612.20-167,418.30-61,845.80

Finding the Fourth Proportional to 111,612.20, 167,418.30 and 61,845.80

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Solution

The fourth proportional to 111,612.20, 167,418.30 and 61,845.80 is: 92,768.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,612.20 : 167,418.30 = 61,845.80 : x
  2. Step 2: Convert to fraction form
    111,612.20/167,418.30 = 61,845.80/x
  3. Step 3: Cross multiply
    111,612.20x = 167,418.30 × 61,845.80
  4. Step 4: Simplify right side
    111,612.20x = 10,354,118,698.14
  5. Step 5: Solve for x
    x = 10,354,118,698.14/111,612.20
  6. Step 6: Final answer
    x = 92,768.70

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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.