Home / 129,950.73-194,942.50-45,691.09

Finding the Fourth Proportional to 129,950.73, 194,942.50 and 45,691.09

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Solution

The fourth proportional to 129,950.73, 194,942.50 and 45,691.09 is: 68,542.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,950.73 : 194,942.50 = 45,691.09 : x
  2. Step 2: Convert to fraction form
    129,950.73/194,942.50 = 45,691.09/x
  3. Step 3: Cross multiply
    129,950.73x = 194,942.50 × 45,691.09
  4. Step 4: Simplify right side
    129,950.73x = 8,907,134,710.74
  5. Step 5: Solve for x
    x = 8,907,134,710.74/129,950.73
  6. Step 6: Final answer
    x = 68,542.40

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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.