Home / 179,811.47-247,999.61-115,286.87

Finding the Fourth Proportional to 179,811.47, 247,999.61 and 115,286.87

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Solution

The fourth proportional to 179,811.47, 247,999.61 and 115,286.87 is: 159,005.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,811.47 : 247,999.61 = 115,286.87 : x
  2. Step 2: Convert to fraction form
    179,811.47/247,999.61 = 115,286.87/x
  3. Step 3: Cross multiply
    179,811.47x = 247,999.61 × 115,286.87
  4. Step 4: Simplify right side
    179,811.47x = 28,591,096,981.69
  5. Step 5: Solve for x
    x = 28,591,096,981.69/179,811.47
  6. Step 6: Final answer
    x = 159,005.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.