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Finding the Fourth Proportional to 100,491.60, 150,730.08 and 40,524.12

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Solution

The fourth proportional to 100,491.60, 150,730.08 and 40,524.12 is: 60,783.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,491.60 : 150,730.08 = 40,524.12 : x
  2. Step 2: Convert to fraction form
    100,491.60/150,730.08 = 40,524.12/x
  3. Step 3: Cross multiply
    100,491.60x = 150,730.08 × 40,524.12
  4. Step 4: Simplify right side
    100,491.60x = 6,108,203,849.53
  5. Step 5: Solve for x
    x = 6,108,203,849.53/100,491.60
  6. Step 6: Final answer
    x = 60,783.23

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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.