Home / 216,110.43-324,095.55-71,977.89

Finding the Fourth Proportional to 216,110.43, 324,095.55 and 71,977.89

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Solution

The fourth proportional to 216,110.43, 324,095.55 and 71,977.89 is: 107,943.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,110.43 : 324,095.55 = 71,977.89 : x
  2. Step 2: Convert to fraction form
    216,110.43/324,095.55 = 71,977.89/x
  3. Step 3: Cross multiply
    216,110.43x = 324,095.55 × 71,977.89
  4. Step 4: Simplify right side
    216,110.43x = 23,327,713,847.39
  5. Step 5: Solve for x
    x = 23,327,713,847.39/216,110.43
  6. Step 6: Final answer
    x = 107,943.49

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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.