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Finding the Fourth Proportional to 159,961.32, 220,745.88 and 88,341.03

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Solution

The fourth proportional to 159,961.32, 220,745.88 and 88,341.03 is: 121,910.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,961.32 : 220,745.88 = 88,341.03 : x
  2. Step 2: Convert to fraction form
    159,961.32/220,745.88 = 88,341.03/x
  3. Step 3: Cross multiply
    159,961.32x = 220,745.88 × 88,341.03
  4. Step 4: Simplify right side
    159,961.32x = 19,500,918,407.46
  5. Step 5: Solve for x
    x = 19,500,918,407.46/159,961.32
  6. Step 6: Final answer
    x = 121,910.21

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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.