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Finding the Fourth Proportional to 75,185.67, 112,743.18 and 43,604.70

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Solution

The fourth proportional to 75,185.67, 112,743.18 and 43,604.70 is: 65,386.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,185.67 : 112,743.18 = 43,604.70 : x
  2. Step 2: Convert to fraction form
    75,185.67/112,743.18 = 43,604.70/x
  3. Step 3: Cross multiply
    75,185.67x = 112,743.18 × 43,604.70
  4. Step 4: Simplify right side
    75,185.67x = 4,916,132,540.95
  5. Step 5: Solve for x
    x = 4,916,132,540.95/75,185.67
  6. Step 6: Final answer
    x = 65,386.56

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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.