Home / 123,769.11-170,801.70-67,180.49

Finding the Fourth Proportional to 123,769.11, 170,801.70 and 67,180.49

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Solution

The fourth proportional to 123,769.11, 170,801.70 and 67,180.49 is: 92,709.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,769.11 : 170,801.70 = 67,180.49 : x
  2. Step 2: Convert to fraction form
    123,769.11/170,801.70 = 67,180.49/x
  3. Step 3: Cross multiply
    123,769.11x = 170,801.70 × 67,180.49
  4. Step 4: Simplify right side
    123,769.11x = 11,474,541,898.83
  5. Step 5: Solve for x
    x = 11,474,541,898.83/123,769.11
  6. Step 6: Final answer
    x = 92,709.25

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1.5x scale

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.