Home / 105,481.36-158,201.88-31,609.36

Finding the Fourth Proportional to 105,481.36, 158,201.88 and 31,609.36

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Solution

The fourth proportional to 105,481.36, 158,201.88 and 31,609.36 is: 47,408.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,481.36 : 158,201.88 = 31,609.36 : x
  2. Step 2: Convert to fraction form
    105,481.36/158,201.88 = 31,609.36/x
  3. Step 3: Cross multiply
    105,481.36x = 158,201.88 × 31,609.36
  4. Step 4: Simplify right side
    105,481.36x = 5,000,660,177.60
  5. Step 5: Solve for x
    x = 5,000,660,177.60/105,481.36
  6. Step 6: Final answer
    x = 47,408.00

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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.