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Finding the Fourth Proportional to 131,816, 197,748.88 and 52,936.40

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Solution

The fourth proportional to 131,816, 197,748.88 and 52,936.40 is: 79,414.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,816 : 197,748.88 = 52,936.40 : x
  2. Step 2: Convert to fraction form
    131,816/197,748.88 = 52,936.40/x
  3. Step 3: Cross multiply
    131,816x = 197,748.88 × 52,936.40
  4. Step 4: Simplify right side
    131,816x = 10,468,113,811.23
  5. Step 5: Solve for x
    x = 10,468,113,811.23/131,816
  6. Step 6: Final answer
    x = 79,414.59

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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.