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Finding the Fourth Proportional to 159,890.22, 220,645.44 and 88,268.76

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Solution

The fourth proportional to 159,890.22, 220,645.44 and 88,268.76 is: 121,809.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,890.22 : 220,645.44 = 88,268.76 : x
  2. Step 2: Convert to fraction form
    159,890.22/220,645.44 = 88,268.76/x
  3. Step 3: Cross multiply
    159,890.22x = 220,645.44 × 88,268.76
  4. Step 4: Simplify right side
    159,890.22x = 19,476,099,388.45
  5. Step 5: Solve for x
    x = 19,476,099,388.45/159,890.22
  6. Step 6: Final answer
    x = 121,809.20

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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.