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Finding the Fourth Proportional to 131,738.40, 197,170.20 and 131,738.40

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Solution

The fourth proportional to 131,738.40, 197,170.20 and 131,738.40 is: 197,170.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,738.40 : 197,170.20 = 131,738.40 : x
  2. Step 2: Convert to fraction form
    131,738.40/197,170.20 = 131,738.40/x
  3. Step 3: Cross multiply
    131,738.40x = 197,170.20 × 131,738.40
  4. Step 4: Simplify right side
    131,738.40x = 25,974,886,675.68
  5. Step 5: Solve for x
    x = 25,974,886,675.68/131,738.40
  6. Step 6: Final answer
    x = 197,170.20

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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.