Home / 156,517.41-234,748.85-72,270.39

Finding the Fourth Proportional to 156,517.41, 234,748.85 and 72,270.39

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Solution

The fourth proportional to 156,517.41, 234,748.85 and 72,270.39 is: 108,392.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,517.41 : 234,748.85 = 72,270.39 : x
  2. Step 2: Convert to fraction form
    156,517.41/234,748.85 = 72,270.39/x
  3. Step 3: Cross multiply
    156,517.41x = 234,748.85 × 72,270.39
  4. Step 4: Simplify right side
    156,517.41x = 16,965,390,580.20
  5. Step 5: Solve for x
    x = 16,965,390,580.20/156,517.41
  6. Step 6: Final answer
    x = 108,392.99

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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.