Home / 111,743.50-167,720.57-40,734.80

Finding the Fourth Proportional to 111,743.50, 167,720.57 and 40,734.80

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Solution

The fourth proportional to 111,743.50, 167,720.57 and 40,734.80 is: 61,140.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,743.50 : 167,720.57 = 40,734.80 : x
  2. Step 2: Convert to fraction form
    111,743.50/167,720.57 = 40,734.80/x
  3. Step 3: Cross multiply
    111,743.50x = 167,720.57 × 40,734.80
  4. Step 4: Simplify right side
    111,743.50x = 6,832,063,843.40
  5. Step 5: Solve for x
    x = 6,832,063,843.40/111,743.50
  6. Step 6: Final answer
    x = 61,140.59

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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.