Home / 259,545.14-389,315.37-82,052.20

Finding the Fourth Proportional to 259,545.14, 389,315.37 and 82,052.20

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Solution

The fourth proportional to 259,545.14, 389,315.37 and 82,052.20 is: 123,077.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,545.14 : 389,315.37 = 82,052.20 : x
  2. Step 2: Convert to fraction form
    259,545.14/389,315.37 = 82,052.20/x
  3. Step 3: Cross multiply
    259,545.14x = 389,315.37 × 82,052.20
  4. Step 4: Simplify right side
    259,545.14x = 31,944,182,602.31
  5. Step 5: Solve for x
    x = 31,944,182,602.31/259,545.14
  6. Step 6: Final answer
    x = 123,077.56

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1.5x scale

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.