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Finding the Fourth Proportional to 161,279.28, 222,571.13 and 88,687.71

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Solution

The fourth proportional to 161,279.28, 222,571.13 and 88,687.71 is: 122,392.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,279.28 : 222,571.13 = 88,687.71 : x
  2. Step 2: Convert to fraction form
    161,279.28/222,571.13 = 88,687.71/x
  3. Step 3: Cross multiply
    161,279.28x = 222,571.13 × 88,687.71
  4. Step 4: Simplify right side
    161,279.28x = 19,739,323,388.37
  5. Step 5: Solve for x
    x = 19,739,323,388.37/161,279.28
  6. Step 6: Final answer
    x = 122,392.18

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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.