Home / 103,840.80-143,300.87-58,519.49

Finding the Fourth Proportional to 103,840.80, 143,300.87 and 58,519.49

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Solution

The fourth proportional to 103,840.80, 143,300.87 and 58,519.49 is: 80,757.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,840.80 : 143,300.87 = 58,519.49 : x
  2. Step 2: Convert to fraction form
    103,840.80/143,300.87 = 58,519.49/x
  3. Step 3: Cross multiply
    103,840.80x = 143,300.87 × 58,519.49
  4. Step 4: Simplify right side
    103,840.80x = 8,385,892,819.85
  5. Step 5: Solve for x
    x = 8,385,892,819.85/103,840.80
  6. Step 6: Final answer
    x = 80,757.21

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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.