Home / 104,138.44-143,711.73-56,391.79

Finding the Fourth Proportional to 104,138.44, 143,711.73 and 56,391.79

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Solution

The fourth proportional to 104,138.44, 143,711.73 and 56,391.79 is: 77,821.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,138.44 : 143,711.73 = 56,391.79 : x
  2. Step 2: Convert to fraction form
    104,138.44/143,711.73 = 56,391.79/x
  3. Step 3: Cross multiply
    104,138.44x = 143,711.73 × 56,391.79
  4. Step 4: Simplify right side
    104,138.44x = 8,104,161,698.70
  5. Step 5: Solve for x
    x = 8,104,161,698.70/104,138.44
  6. Step 6: Final answer
    x = 77,821.04

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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.