Home / 103,694.20-143,100.72-58,373.80

Finding the Fourth Proportional to 103,694.20, 143,100.72 and 58,373.80

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Solution

The fourth proportional to 103,694.20, 143,100.72 and 58,373.80 is: 80,557.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,694.20 : 143,100.72 = 58,373.80 : x
  2. Step 2: Convert to fraction form
    103,694.20/143,100.72 = 58,373.80/x
  3. Step 3: Cross multiply
    103,694.20x = 143,100.72 × 58,373.80
  4. Step 4: Simplify right side
    103,694.20x = 8,353,332,809.14
  5. Step 5: Solve for x
    x = 8,353,332,809.14/103,694.20
  6. Step 6: Final answer
    x = 80,557.38

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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.