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Finding the Fourth Proportional to 120,950.52, 181,198.20 and 70,881.89

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Solution

The fourth proportional to 120,950.52, 181,198.20 and 70,881.89 is: 106,189.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,950.52 : 181,198.20 = 70,881.89 : x
  2. Step 2: Convert to fraction form
    120,950.52/181,198.20 = 70,881.89/x
  3. Step 3: Cross multiply
    120,950.52x = 181,198.20 × 70,881.89
  4. Step 4: Simplify right side
    120,950.52x = 12,843,670,388.29
  5. Step 5: Solve for x
    x = 12,843,670,388.29/120,950.52
  6. Step 6: Final answer
    x = 106,189.46

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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.