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Finding the Fourth Proportional to 146,690.10, 220,035.15 and 80,093.90

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Solution

The fourth proportional to 146,690.10, 220,035.15 and 80,093.90 is: 120,140.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,690.10 : 220,035.15 = 80,093.90 : x
  2. Step 2: Convert to fraction form
    146,690.10/220,035.15 = 80,093.90/x
  3. Step 3: Cross multiply
    146,690.10x = 220,035.15 × 80,093.90
  4. Step 4: Simplify right side
    146,690.10x = 17,623,472,612.98
  5. Step 5: Solve for x
    x = 17,623,472,612.98/146,690.10
  6. Step 6: Final answer
    x = 120,140.85

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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.