Home / 259,905.04-389,871.48-82,425.52

Finding the Fourth Proportional to 259,905.04, 389,871.48 and 82,425.52

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Solution

The fourth proportional to 259,905.04, 389,871.48 and 82,425.52 is: 123,642.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,905.04 : 389,871.48 = 82,425.52 : x
  2. Step 2: Convert to fraction form
    259,905.04/389,871.48 = 82,425.52/x
  3. Step 3: Cross multiply
    259,905.04x = 389,871.48 × 82,425.52
  4. Step 4: Simplify right side
    259,905.04x = 32,135,359,472.17
  5. Step 5: Solve for x
    x = 32,135,359,472.17/259,905.04
  6. Step 6: Final answer
    x = 123,642.69

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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.