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Finding the Fourth Proportional to 95,590.20, 143,385.30 and 80,383.80

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Solution

The fourth proportional to 95,590.20, 143,385.30 and 80,383.80 is: 120,575.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,590.20 : 143,385.30 = 80,383.80 : x
  2. Step 2: Convert to fraction form
    95,590.20/143,385.30 = 80,383.80/x
  3. Step 3: Cross multiply
    95,590.20x = 143,385.30 × 80,383.80
  4. Step 4: Simplify right side
    95,590.20x = 11,525,855,278.14
  5. Step 5: Solve for x
    x = 11,525,855,278.14/95,590.20
  6. Step 6: Final answer
    x = 120,575.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.