Home / 131,781.62-197,671.88-31,941.69

Finding the Fourth Proportional to 131,781.62, 197,671.88 and 31,941.69

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Solution

The fourth proportional to 131,781.62, 197,671.88 and 31,941.69 is: 47,912.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,781.62 : 197,671.88 = 31,941.69 : x
  2. Step 2: Convert to fraction form
    131,781.62/197,671.88 = 31,941.69/x
  3. Step 3: Cross multiply
    131,781.62x = 197,671.88 × 31,941.69
  4. Step 4: Simplify right side
    131,781.62x = 6,313,973,752.97
  5. Step 5: Solve for x
    x = 6,313,973,752.97/131,781.62
  6. Step 6: Final answer
    x = 47,912.40

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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.