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Finding the Fourth Proportional to 80,157.51, 120,269.41 and 35,155.60

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Solution

The fourth proportional to 80,157.51, 120,269.41 and 35,155.60 is: 52,747.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,157.51 : 120,269.41 = 35,155.60 : x
  2. Step 2: Convert to fraction form
    80,157.51/120,269.41 = 35,155.60/x
  3. Step 3: Cross multiply
    80,157.51x = 120,269.41 × 35,155.60
  4. Step 4: Simplify right side
    80,157.51x = 4,228,142,881.63
  5. Step 5: Solve for x
    x = 4,228,142,881.63/80,157.51
  6. Step 6: Final answer
    x = 52,747.93

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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.