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Finding the Fourth Proportional to 161,295.70, 222,575.42 and 89,671.36

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Solution

The fourth proportional to 161,295.70, 222,575.42 and 89,671.36 is: 123,739.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,295.70 : 222,575.42 = 89,671.36 : x
  2. Step 2: Convert to fraction form
    161,295.70/222,575.42 = 89,671.36/x
  3. Step 3: Cross multiply
    161,295.70x = 222,575.42 × 89,671.36
  4. Step 4: Simplify right side
    161,295.70x = 19,958,640,613.97
  5. Step 5: Solve for x
    x = 19,958,640,613.97/161,295.70
  6. Step 6: Final answer
    x = 123,739.45

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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.