Home / 115,856.01-173,778.82-31,615.90

Finding the Fourth Proportional to 115,856.01, 173,778.82 and 31,615.90

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Solution

The fourth proportional to 115,856.01, 173,778.82 and 31,615.90 is: 47,422.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,856.01 : 173,778.82 = 31,615.90 : x
  2. Step 2: Convert to fraction form
    115,856.01/173,778.82 = 31,615.90/x
  3. Step 3: Cross multiply
    115,856.01x = 173,778.82 × 31,615.90
  4. Step 4: Simplify right side
    115,856.01x = 5,494,173,281.75
  5. Step 5: Solve for x
    x = 5,494,173,281.75/115,856.01
  6. Step 6: Final answer
    x = 47,422.43

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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.