Home / 103,743.30-143,163.87-58,421.10

Finding the Fourth Proportional to 103,743.30, 143,163.87 and 58,421.10

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Solution

The fourth proportional to 103,743.30, 143,163.87 and 58,421.10 is: 80,620.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,743.30 : 143,163.87 = 58,421.10 : x
  2. Step 2: Convert to fraction form
    103,743.30/143,163.87 = 58,421.10/x
  3. Step 3: Cross multiply
    103,743.30x = 143,163.87 × 58,421.10
  4. Step 4: Simplify right side
    103,743.30x = 8,363,790,765.66
  5. Step 5: Solve for x
    x = 8,363,790,765.66/103,743.30
  6. Step 6: Final answer
    x = 80,620.06

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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.