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Finding the Fourth Proportional to 80,171.98, 120,299.46 and 58,166.98

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Solution

The fourth proportional to 80,171.98, 120,299.46 and 58,166.98 is: 87,280.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,171.98 : 120,299.46 = 58,166.98 : x
  2. Step 2: Convert to fraction form
    80,171.98/120,299.46 = 58,166.98/x
  3. Step 3: Cross multiply
    80,171.98x = 120,299.46 × 58,166.98
  4. Step 4: Simplify right side
    80,171.98x = 6,997,455,983.08
  5. Step 5: Solve for x
    x = 6,997,455,983.08/80,171.98
  6. Step 6: Final answer
    x = 87,280.57

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1.5x scale

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.