Home / 188,917.12-260,679.09-104,039.74

Finding the Fourth Proportional to 188,917.12, 260,679.09 and 104,039.74

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Solution

The fourth proportional to 188,917.12, 260,679.09 and 104,039.74 is: 143,560.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,917.12 : 260,679.09 = 104,039.74 : x
  2. Step 2: Convert to fraction form
    188,917.12/260,679.09 = 104,039.74/x
  3. Step 3: Cross multiply
    188,917.12x = 260,679.09 × 104,039.74
  4. Step 4: Simplify right side
    188,917.12x = 27,120,984,747.04
  5. Step 5: Solve for x
    x = 27,120,984,747.04/188,917.12
  6. Step 6: Final answer
    x = 143,560.23

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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.