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Finding the Fourth Proportional to 159,855.95, 239,783.94 and 80,992.73

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Solution

The fourth proportional to 159,855.95, 239,783.94 and 80,992.73 is: 121,489.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,855.95 : 239,783.94 = 80,992.73 : x
  2. Step 2: Convert to fraction form
    159,855.95/239,783.94 = 80,992.73/x
  3. Step 3: Cross multiply
    159,855.95x = 239,783.94 × 80,992.73
  4. Step 4: Simplify right side
    159,855.95x = 19,420,756,510.22
  5. Step 5: Solve for x
    x = 19,420,756,510.22/159,855.95
  6. Step 6: Final answer
    x = 121,489.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.