Home / 105,481.75-158,248.55-31,609.75

Finding the Fourth Proportional to 105,481.75, 158,248.55 and 31,609.75

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Solution

The fourth proportional to 105,481.75, 158,248.55 and 31,609.75 is: 47,422.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,481.75 : 158,248.55 = 31,609.75 : x
  2. Step 2: Convert to fraction form
    105,481.75/158,248.55 = 31,609.75/x
  3. Step 3: Cross multiply
    105,481.75x = 158,248.55 × 31,609.75
  4. Step 4: Simplify right side
    105,481.75x = 5,002,197,103.36
  5. Step 5: Solve for x
    x = 5,002,197,103.36/105,481.75
  6. Step 6: Final answer
    x = 47,422.39

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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.