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Finding the Fourth Proportional to 161,420.26, 222,758.88 and 88,827.56

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Solution

The fourth proportional to 161,420.26, 222,758.88 and 88,827.56 is: 122,581.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,420.26 : 222,758.88 = 88,827.56 : x
  2. Step 2: Convert to fraction form
    161,420.26/222,758.88 = 88,827.56/x
  3. Step 3: Cross multiply
    161,420.26x = 222,758.88 × 88,827.56
  4. Step 4: Simplify right side
    161,420.26x = 19,787,127,778.73
  5. Step 5: Solve for x
    x = 19,787,127,778.73/161,420.26
  6. Step 6: Final answer
    x = 122,581.44

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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.