Home / 259,674.79-389,551.07-82,122.79

Finding the Fourth Proportional to 259,674.79, 389,551.07 and 82,122.79

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Solution

The fourth proportional to 259,674.79, 389,551.07 and 82,122.79 is: 123,196.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,674.79 : 389,551.07 = 82,122.79 : x
  2. Step 2: Convert to fraction form
    259,674.79/389,551.07 = 82,122.79/x
  3. Step 3: Cross multiply
    259,674.79x = 389,551.07 × 82,122.79
  4. Step 4: Simplify right side
    259,674.79x = 31,991,020,715.89
  5. Step 5: Solve for x
    x = 31,991,020,715.89/259,674.79
  6. Step 6: Final answer
    x = 123,196.48

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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.