Home / 78,241.05-117,167.09-71,604.69

Finding the Fourth Proportional to 78,241.05, 117,167.09 and 71,604.69

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Solution

The fourth proportional to 78,241.05, 117,167.09 and 71,604.69 is: 107,229.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,241.05 : 117,167.09 = 71,604.69 : x
  2. Step 2: Convert to fraction form
    78,241.05/117,167.09 = 71,604.69/x
  3. Step 3: Cross multiply
    78,241.05x = 117,167.09 × 71,604.69
  4. Step 4: Simplify right side
    78,241.05x = 8,389,712,799.63
  5. Step 5: Solve for x
    x = 8,389,712,799.63/78,241.05
  6. Step 6: Final answer
    x = 107,229.04

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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.