Home / 123,742.11-170,764.23-67,153.49

Finding the Fourth Proportional to 123,742.11, 170,764.23 and 67,153.49

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Solution

The fourth proportional to 123,742.11, 170,764.23 and 67,153.49 is: 92,671.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,742.11 : 170,764.23 = 67,153.49 : x
  2. Step 2: Convert to fraction form
    123,742.11/170,764.23 = 67,153.49/x
  3. Step 3: Cross multiply
    123,742.11x = 170,764.23 × 67,153.49
  4. Step 4: Simplify right side
    123,742.11x = 11,467,414,050.03
  5. Step 5: Solve for x
    x = 11,467,414,050.03/123,742.11
  6. Step 6: Final answer
    x = 92,671.88

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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.