Home / 156,424.89-234,695.97-72,225.39

Finding the Fourth Proportional to 156,424.89, 234,695.97 and 72,225.39

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Solution

The fourth proportional to 156,424.89, 234,695.97 and 72,225.39 is: 108,365.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,424.89 : 234,695.97 = 72,225.39 : x
  2. Step 2: Convert to fraction form
    156,424.89/234,695.97 = 72,225.39/x
  3. Step 3: Cross multiply
    156,424.89x = 234,695.97 × 72,225.39
  4. Step 4: Simplify right side
    156,424.89x = 16,951,007,964.68
  5. Step 5: Solve for x
    x = 16,951,007,964.68/156,424.89
  6. Step 6: Final answer
    x = 108,365.16

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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.