Home / 118,209.28-163,138.47-67,237.95

Finding the Fourth Proportional to 118,209.28, 163,138.47 and 67,237.95

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Solution

The fourth proportional to 118,209.28, 163,138.47 and 67,237.95 is: 92,793.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,209.28 : 163,138.47 = 67,237.95 : x
  2. Step 2: Convert to fraction form
    118,209.28/163,138.47 = 67,237.95/x
  3. Step 3: Cross multiply
    118,209.28x = 163,138.47 × 67,237.95
  4. Step 4: Simplify right side
    118,209.28x = 10,969,096,288.94
  5. Step 5: Solve for x
    x = 10,969,096,288.94/118,209.28
  6. Step 6: Final answer
    x = 92,793.87

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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.