Home / 150,455.82-207,634.35-82,472.78

Finding the Fourth Proportional to 150,455.82, 207,634.35 and 82,472.78

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Solution

The fourth proportional to 150,455.82, 207,634.35 and 82,472.78 is: 113,815.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,455.82 : 207,634.35 = 82,472.78 : x
  2. Step 2: Convert to fraction form
    150,455.82/207,634.35 = 82,472.78/x
  3. Step 3: Cross multiply
    150,455.82x = 207,634.35 × 82,472.78
  4. Step 4: Simplify right side
    150,455.82x = 17,124,181,625.91
  5. Step 5: Solve for x
    x = 17,124,181,625.91/150,455.82
  6. Step 6: Final answer
    x = 113,815.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.