Home / 118,847.28-164,013.72-67,868.30

Finding the Fourth Proportional to 118,847.28, 164,013.72 and 67,868.30

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Solution

The fourth proportional to 118,847.28, 164,013.72 and 67,868.30 is: 93,660.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,847.28 : 164,013.72 = 67,868.30 : x
  2. Step 2: Convert to fraction form
    118,847.28/164,013.72 = 67,868.30/x
  3. Step 3: Cross multiply
    118,847.28x = 164,013.72 × 67,868.30
  4. Step 4: Simplify right side
    118,847.28x = 11,131,332,353.08
  5. Step 5: Solve for x
    x = 11,131,332,353.08/118,847.28
  6. Step 6: Final answer
    x = 93,660.81

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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.