Home / 131,781.13-197,669.97-31,942.18

Finding the Fourth Proportional to 131,781.13, 197,669.97 and 31,942.18

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Solution

The fourth proportional to 131,781.13, 197,669.97 and 31,942.18 is: 47,912.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,781.13 : 197,669.97 = 31,942.18 : x
  2. Step 2: Convert to fraction form
    131,781.13/197,669.97 = 31,942.18/x
  3. Step 3: Cross multiply
    131,781.13x = 197,669.97 × 31,942.18
  4. Step 4: Simplify right side
    131,781.13x = 6,314,010,009.42
  5. Step 5: Solve for x
    x = 6,314,010,009.42/131,781.13
  6. Step 6: Final answer
    x = 47,912.85

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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.