Home / 259,641.22-389,476.02-82,135.03

Finding the Fourth Proportional to 259,641.22, 389,476.02 and 82,135.03

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Solution

The fourth proportional to 259,641.22, 389,476.02 and 82,135.03 is: 123,207.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,641.22 : 389,476.02 = 82,135.03 : x
  2. Step 2: Convert to fraction form
    259,641.22/389,476.02 = 82,135.03/x
  3. Step 3: Cross multiply
    259,641.22x = 389,476.02 × 82,135.03
  4. Step 4: Simplify right side
    259,641.22x = 31,989,624,586.98
  5. Step 5: Solve for x
    x = 31,989,624,586.98/259,641.22
  6. Step 6: Final answer
    x = 123,207.03

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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.