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Finding the Fourth Proportional to 159,936.30, 220,715.52 and 88,320.84

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Solution

The fourth proportional to 159,936.30, 220,715.52 and 88,320.84 is: 121,884.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,936.30 : 220,715.52 = 88,320.84 : x
  2. Step 2: Convert to fraction form
    159,936.30/220,715.52 = 88,320.84/x
  3. Step 3: Cross multiply
    159,936.30x = 220,715.52 × 88,320.84
  4. Step 4: Simplify right side
    159,936.30x = 19,493,780,127.44
  5. Step 5: Solve for x
    x = 19,493,780,127.44/159,936.30
  6. Step 6: Final answer
    x = 121,884.65

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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.