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Finding the Fourth Proportional to 159,910.76, 220,679.69 and 88,286.51

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Solution

The fourth proportional to 159,910.76, 220,679.69 and 88,286.51 is: 121,836.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,910.76 : 220,679.69 = 88,286.51 : x
  2. Step 2: Convert to fraction form
    159,910.76/220,679.69 = 88,286.51/x
  3. Step 3: Cross multiply
    159,910.76x = 220,679.69 × 88,286.51
  4. Step 4: Simplify right side
    159,910.76x = 19,483,038,113.15
  5. Step 5: Solve for x
    x = 19,483,038,113.15/159,910.76
  6. Step 6: Final answer
    x = 121,836.95

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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.