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Finding the Fourth Proportional to 161,471.58, 222,892.78 and 121,301.86

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Solution

The fourth proportional to 161,471.58, 222,892.78 and 121,301.86 is: 167,443.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,471.58 : 222,892.78 = 121,301.86 : x
  2. Step 2: Convert to fraction form
    161,471.58/222,892.78 = 121,301.86/x
  3. Step 3: Cross multiply
    161,471.58x = 222,892.78 × 121,301.86
  4. Step 4: Simplify right side
    161,471.58x = 27,037,308,794.57
  5. Step 5: Solve for x
    x = 27,037,308,794.57/161,471.58
  6. Step 6: Final answer
    x = 167,443.14

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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.