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Finding the Fourth Proportional to 100,191.88, 150,066.28 and 68,526.88

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Solution

The fourth proportional to 100,191.88, 150,066.28 and 68,526.88 is: 102,638.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,191.88 : 150,066.28 = 68,526.88 : x
  2. Step 2: Convert to fraction form
    100,191.88/150,066.28 = 68,526.88/x
  3. Step 3: Cross multiply
    100,191.88x = 150,066.28 × 68,526.88
  4. Step 4: Simplify right side
    100,191.88x = 10,283,573,961.61
  5. Step 5: Solve for x
    x = 10,283,573,961.61/100,191.88
  6. Step 6: Final answer
    x = 102,638.80

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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.