Home / 161,376.81-222,704.24-88,781.57

Finding the Fourth Proportional to 161,376.81, 222,704.24 and 88,781.57

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Solution

The fourth proportional to 161,376.81, 222,704.24 and 88,781.57 is: 122,520.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,376.81 : 222,704.24 = 88,781.57 : x
  2. Step 2: Convert to fraction form
    161,376.81/222,704.24 = 88,781.57/x
  3. Step 3: Cross multiply
    161,376.81x = 222,704.24 × 88,781.57
  4. Step 4: Simplify right side
    161,376.81x = 19,772,031,350.57
  5. Step 5: Solve for x
    x = 19,772,031,350.57/161,376.81
  6. Step 6: Final answer
    x = 122,520.90

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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.