Home / 259,558.32-389,335.18-82,065.45

Finding the Fourth Proportional to 259,558.32, 389,335.18 and 82,065.45

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Solution

The fourth proportional to 259,558.32, 389,335.18 and 82,065.45 is: 123,097.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,558.32 : 389,335.18 = 82,065.45 : x
  2. Step 2: Convert to fraction form
    259,558.32/389,335.18 = 82,065.45/x
  3. Step 3: Cross multiply
    259,558.32x = 389,335.18 × 82,065.45
  4. Step 4: Simplify right side
    259,558.32x = 31,950,966,747.53
  5. Step 5: Solve for x
    x = 31,950,966,747.53/259,558.32
  6. Step 6: Final answer
    x = 123,097.45

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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.