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Finding the Fourth Proportional to 100,108.90, 150,119.06 and 29,975.14

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Solution

The fourth proportional to 100,108.90, 150,119.06 and 29,975.14 is: 44,949.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,108.90 : 150,119.06 = 29,975.14 : x
  2. Step 2: Convert to fraction form
    100,108.90/150,119.06 = 29,975.14/x
  3. Step 3: Cross multiply
    100,108.90x = 150,119.06 × 29,975.14
  4. Step 4: Simplify right side
    100,108.90x = 4,499,839,840.17
  5. Step 5: Solve for x
    x = 4,499,839,840.17/100,108.90
  6. Step 6: Final answer
    x = 44,949.45

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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.