Home / 110,720.88-166,109-31,835.12

Finding the Fourth Proportional to 110,720.88, 166,109 and 31,835.12

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Solution

The fourth proportional to 110,720.88, 166,109 and 31,835.12 is: 47,760.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,720.88 : 166,109 = 31,835.12 : x
  2. Step 2: Convert to fraction form
    110,720.88/166,109 = 31,835.12/x
  3. Step 3: Cross multiply
    110,720.88x = 166,109 × 31,835.12
  4. Step 4: Simplify right side
    110,720.88x = 5,288,099,948.08
  5. Step 5: Solve for x
    x = 5,288,099,948.08/110,720.88
  6. Step 6: Final answer
    x = 47,760.64

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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.