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Finding the Fourth Proportional to 100,077.60, 150,103.44 and 37,740

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Solution

The fourth proportional to 100,077.60, 150,103.44 and 37,740 is: 56,605.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,077.60 : 150,103.44 = 37,740 : x
  2. Step 2: Convert to fraction form
    100,077.60/150,103.44 = 37,740/x
  3. Step 3: Cross multiply
    100,077.60x = 150,103.44 × 37,740
  4. Step 4: Simplify right side
    100,077.60x = 5,664,903,825.60
  5. Step 5: Solve for x
    x = 5,664,903,825.60/100,077.60
  6. Step 6: Final answer
    x = 56,605.11

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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.