Home / 92,548.68-138,677.57-71,540.21

Finding the Fourth Proportional to 92,548.68, 138,677.57 and 71,540.21

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Solution

The fourth proportional to 92,548.68, 138,677.57 and 71,540.21 is: 107,197.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,548.68 : 138,677.57 = 71,540.21 : x
  2. Step 2: Convert to fraction form
    92,548.68/138,677.57 = 71,540.21/x
  3. Step 3: Cross multiply
    92,548.68x = 138,677.57 × 71,540.21
  4. Step 4: Simplify right side
    92,548.68x = 9,921,022,737.36
  5. Step 5: Solve for x
    x = 9,921,022,737.36/92,548.68
  6. Step 6: Final answer
    x = 107,197.89

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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.