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Finding the Fourth Proportional to 80,654.63, 120,200.54 and 76,455.59

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Solution

The fourth proportional to 80,654.63, 120,200.54 and 76,455.59 is: 113,942.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,654.63 : 120,200.54 = 76,455.59 : x
  2. Step 2: Convert to fraction form
    80,654.63/120,200.54 = 76,455.59/x
  3. Step 3: Cross multiply
    80,654.63x = 120,200.54 × 76,455.59
  4. Step 4: Simplify right side
    80,654.63x = 9,190,002,220.74
  5. Step 5: Solve for x
    x = 9,190,002,220.74/80,654.63
  6. Step 6: Final answer
    x = 113,942.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.