Home / 188,712.09-260,426.66-103,829.31

Finding the Fourth Proportional to 188,712.09, 260,426.66 and 103,829.31

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Solution

The fourth proportional to 188,712.09, 260,426.66 and 103,829.31 is: 143,286.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,712.09 : 260,426.66 = 103,829.31 : x
  2. Step 2: Convert to fraction form
    188,712.09/260,426.66 = 103,829.31/x
  3. Step 3: Cross multiply
    188,712.09x = 260,426.66 × 103,829.31
  4. Step 4: Simplify right side
    188,712.09x = 27,039,919,894.26
  5. Step 5: Solve for x
    x = 27,039,919,894.26/188,712.09
  6. Step 6: Final answer
    x = 143,286.63

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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.