Home / 131,739.82-197,610.27-31,899.90

Finding the Fourth Proportional to 131,739.82, 197,610.27 and 31,899.90

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Solution

The fourth proportional to 131,739.82, 197,610.27 and 31,899.90 is: 47,849.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,739.82 : 197,610.27 = 31,899.90 : x
  2. Step 2: Convert to fraction form
    131,739.82/197,610.27 = 31,899.90/x
  3. Step 3: Cross multiply
    131,739.82x = 197,610.27 × 31,899.90
  4. Step 4: Simplify right side
    131,739.82x = 6,303,747,851.97
  5. Step 5: Solve for x
    x = 6,303,747,851.97/131,739.82
  6. Step 6: Final answer
    x = 47,849.98

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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.