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Finding the Fourth Proportional to 100,451.42, 150,700.13 and 43,534.88

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Solution

The fourth proportional to 100,451.42, 150,700.13 and 43,534.88 is: 65,312.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,451.42 : 150,700.13 = 43,534.88 : x
  2. Step 2: Convert to fraction form
    100,451.42/150,700.13 = 43,534.88/x
  3. Step 3: Cross multiply
    100,451.42x = 150,700.13 × 43,534.88
  4. Step 4: Simplify right side
    100,451.42x = 6,560,711,104.36
  5. Step 5: Solve for x
    x = 6,560,711,104.36/100,451.42
  6. Step 6: Final answer
    x = 65,312.28

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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.