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Finding the Fourth Proportional to 161,398.18, 222,720.65 and 88,799.70

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Solution

The fourth proportional to 161,398.18, 222,720.65 and 88,799.70 is: 122,538.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,398.18 : 222,720.65 = 88,799.70 : x
  2. Step 2: Convert to fraction form
    161,398.18/222,720.65 = 88,799.70/x
  3. Step 3: Cross multiply
    161,398.18x = 222,720.65 × 88,799.70
  4. Step 4: Simplify right side
    161,398.18x = 19,777,525,346.20
  5. Step 5: Solve for x
    x = 19,777,525,346.20/161,398.18
  6. Step 6: Final answer
    x = 122,538.71

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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.