Home / 156,186.15-234,244.13-71,865.42

Finding the Fourth Proportional to 156,186.15, 234,244.13 and 71,865.42

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Solution

The fourth proportional to 156,186.15, 234,244.13 and 71,865.42 is: 107,781.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,186.15 : 234,244.13 = 71,865.42 : x
  2. Step 2: Convert to fraction form
    156,186.15/234,244.13 = 71,865.42/x
  3. Step 3: Cross multiply
    156,186.15x = 234,244.13 × 71,865.42
  4. Step 4: Simplify right side
    156,186.15x = 16,834,052,425.66
  5. Step 5: Solve for x
    x = 16,834,052,425.66/156,186.15
  6. Step 6: Final answer
    x = 107,781.98

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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.