Home / 103,678.45-143,080.94-58,372.02

Finding the Fourth Proportional to 103,678.45, 143,080.94 and 58,372.02

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Solution

The fourth proportional to 103,678.45, 143,080.94 and 58,372.02 is: 80,556.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,678.45 : 143,080.94 = 58,372.02 : x
  2. Step 2: Convert to fraction form
    103,678.45/143,080.94 = 58,372.02/x
  3. Step 3: Cross multiply
    103,678.45x = 143,080.94 × 58,372.02
  4. Step 4: Simplify right side
    103,678.45x = 8,351,923,491.30
  5. Step 5: Solve for x
    x = 8,351,923,491.30/103,678.45
  6. Step 6: Final answer
    x = 80,556.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.