Home / 95,981.78-143,860.58-72,212.97

Finding the Fourth Proportional to 95,981.78, 143,860.58 and 72,212.97

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Solution

The fourth proportional to 95,981.78, 143,860.58 and 72,212.97 is: 108,235.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,981.78 : 143,860.58 = 72,212.97 : x
  2. Step 2: Convert to fraction form
    95,981.78/143,860.58 = 72,212.97/x
  3. Step 3: Cross multiply
    95,981.78x = 143,860.58 × 72,212.97
  4. Step 4: Simplify right side
    95,981.78x = 10,388,599,747.72
  5. Step 5: Solve for x
    x = 10,388,599,747.72/95,981.78
  6. Step 6: Final answer
    x = 108,235.12

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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.