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Finding the Fourth Proportional to 131,185.60, 196,551.60 and 60,920.80

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Solution

The fourth proportional to 131,185.60, 196,551.60 and 60,920.80 is: 91,275.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,185.60 : 196,551.60 = 60,920.80 : x
  2. Step 2: Convert to fraction form
    131,185.60/196,551.60 = 60,920.80/x
  3. Step 3: Cross multiply
    131,185.60x = 196,551.60 × 60,920.80
  4. Step 4: Simplify right side
    131,185.60x = 11,974,080,713.28
  5. Step 5: Solve for x
    x = 11,974,080,713.28/131,185.60
  6. Step 6: Final answer
    x = 91,275.88

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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.