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Finding the Fourth Proportional to 110,424.20, 165,636.30 and 75,432.20

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Solution

The fourth proportional to 110,424.20, 165,636.30 and 75,432.20 is: 113,148.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,424.20 : 165,636.30 = 75,432.20 : x
  2. Step 2: Convert to fraction form
    110,424.20/165,636.30 = 75,432.20/x
  3. Step 3: Cross multiply
    110,424.20x = 165,636.30 × 75,432.20
  4. Step 4: Simplify right side
    110,424.20x = 12,494,310,508.86
  5. Step 5: Solve for x
    x = 12,494,310,508.86/110,424.20
  6. Step 6: Final answer
    x = 113,148.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.