Home / 111,845.20-167,767.80-41,720.80

Finding the Fourth Proportional to 111,845.20, 167,767.80 and 41,720.80

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Solution

The fourth proportional to 111,845.20, 167,767.80 and 41,720.80 is: 62,581.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,845.20 : 167,767.80 = 41,720.80 : x
  2. Step 2: Convert to fraction form
    111,845.20/167,767.80 = 41,720.80/x
  3. Step 3: Cross multiply
    111,845.20x = 167,767.80 × 41,720.80
  4. Step 4: Simplify right side
    111,845.20x = 6,999,406,830.24
  5. Step 5: Solve for x
    x = 6,999,406,830.24/111,845.20
  6. Step 6: Final answer
    x = 62,581.20

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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.