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Finding the Fourth Proportional to 143,279.70, 214,919.55 and 123,596.70

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Solution

The fourth proportional to 143,279.70, 214,919.55 and 123,596.70 is: 185,395.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,279.70 : 214,919.55 = 123,596.70 : x
  2. Step 2: Convert to fraction form
    143,279.70/214,919.55 = 123,596.70/x
  3. Step 3: Cross multiply
    143,279.70x = 214,919.55 × 123,596.70
  4. Step 4: Simplify right side
    143,279.70x = 26,563,347,145.49
  5. Step 5: Solve for x
    x = 26,563,347,145.49/143,279.70
  6. Step 6: Final answer
    x = 185,395.05

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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.