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Finding the Fourth Proportional to 159,632.70, 239,415.45 and 80,672.70

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Solution

The fourth proportional to 159,632.70, 239,415.45 and 80,672.70 is: 120,992.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,632.70 : 239,415.45 = 80,672.70 : x
  2. Step 2: Convert to fraction form
    159,632.70/239,415.45 = 80,672.70/x
  3. Step 3: Cross multiply
    159,632.70x = 239,415.45 × 80,672.70
  4. Step 4: Simplify right side
    159,632.70x = 19,314,290,773.22
  5. Step 5: Solve for x
    x = 19,314,290,773.22/159,632.70
  6. Step 6: Final answer
    x = 120,992.07

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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.