Home / 110,280.21-165,436.71-51,121.86

Finding the Fourth Proportional to 110,280.21, 165,436.71 and 51,121.86

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Solution

The fourth proportional to 110,280.21, 165,436.71 and 51,121.86 is: 76,690.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,280.21 : 165,436.71 = 51,121.86 : x
  2. Step 2: Convert to fraction form
    110,280.21/165,436.71 = 51,121.86/x
  3. Step 3: Cross multiply
    110,280.21x = 165,436.71 × 51,121.86
  4. Step 4: Simplify right side
    110,280.21x = 8,457,432,327.48
  5. Step 5: Solve for x
    x = 8,457,432,327.48/110,280.21
  6. Step 6: Final answer
    x = 76,690.39

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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.