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Finding the Fourth Proportional to 100,767.53, 151,107.54 and 30,630.44

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Solution

The fourth proportional to 100,767.53, 151,107.54 and 30,630.44 is: 45,932.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,767.53 : 151,107.54 = 30,630.44 : x
  2. Step 2: Convert to fraction form
    100,767.53/151,107.54 = 30,630.44/x
  3. Step 3: Cross multiply
    100,767.53x = 151,107.54 × 30,630.44
  4. Step 4: Simplify right side
    100,767.53x = 4,628,489,681.98
  5. Step 5: Solve for x
    x = 4,628,489,681.98/100,767.53
  6. Step 6: Final answer
    x = 45,932.35

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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.