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Finding the Fourth Proportional to 100,172.40, 150,278.64 and 36,992.91

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Solution

The fourth proportional to 100,172.40, 150,278.64 and 36,992.91 is: 55,496.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,172.40 : 150,278.64 = 36,992.91 : x
  2. Step 2: Convert to fraction form
    100,172.40/150,278.64 = 36,992.91/x
  3. Step 3: Cross multiply
    100,172.40x = 150,278.64 × 36,992.91
  4. Step 4: Simplify right side
    100,172.40x = 5,559,244,204.44
  5. Step 5: Solve for x
    x = 5,559,244,204.44/100,172.40
  6. Step 6: Final answer
    x = 55,496.77

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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.