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Finding the Fourth Proportional to 131,987.75, 197,981.97 and 32,147.75

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Solution

The fourth proportional to 131,987.75, 197,981.97 and 32,147.75 is: 48,221.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,987.75 : 197,981.97 = 32,147.75 : x
  2. Step 2: Convert to fraction form
    131,987.75/197,981.97 = 32,147.75/x
  3. Step 3: Cross multiply
    131,987.75x = 197,981.97 × 32,147.75
  4. Step 4: Simplify right side
    131,987.75x = 6,364,673,886.16
  5. Step 5: Solve for x
    x = 6,364,673,886.16/131,987.75
  6. Step 6: Final answer
    x = 48,221.70

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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.