Home / 123,778.66-170,814.41-67,190.04

Finding the Fourth Proportional to 123,778.66, 170,814.41 and 67,190.04

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Solution

The fourth proportional to 123,778.66, 170,814.41 and 67,190.04 is: 92,722.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,778.66 : 170,814.41 = 67,190.04 : x
  2. Step 2: Convert to fraction form
    123,778.66/170,814.41 = 67,190.04/x
  3. Step 3: Cross multiply
    123,778.66x = 170,814.41 × 67,190.04
  4. Step 4: Simplify right side
    123,778.66x = 11,477,025,850.45
  5. Step 5: Solve for x
    x = 11,477,025,850.45/123,778.66
  6. Step 6: Final answer
    x = 92,722.17

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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.