Home / 118,902.11-178,359.45-30,156.41

Finding the Fourth Proportional to 118,902.11, 178,359.45 and 30,156.41

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Solution

The fourth proportional to 118,902.11, 178,359.45 and 30,156.41 is: 45,236.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,902.11 : 178,359.45 = 30,156.41 : x
  2. Step 2: Convert to fraction form
    118,902.11/178,359.45 = 30,156.41/x
  3. Step 3: Cross multiply
    118,902.11x = 178,359.45 × 30,156.41
  4. Step 4: Simplify right side
    118,902.11x = 5,378,680,701.57
  5. Step 5: Solve for x
    x = 5,378,680,701.57/118,902.11
  6. Step 6: Final answer
    x = 45,236.21

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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.