Home / 135,968.09-187,635.80-75,544.31

Finding the Fourth Proportional to 135,968.09, 187,635.80 and 75,544.31

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Solution

The fourth proportional to 135,968.09, 187,635.80 and 75,544.31 is: 104,251.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,968.09 : 187,635.80 = 75,544.31 : x
  2. Step 2: Convert to fraction form
    135,968.09/187,635.80 = 75,544.31/x
  3. Step 3: Cross multiply
    135,968.09x = 187,635.80 × 75,544.31
  4. Step 4: Simplify right side
    135,968.09x = 14,174,816,664.58
  5. Step 5: Solve for x
    x = 14,174,816,664.58/135,968.09
  6. Step 6: Final answer
    x = 104,251.05

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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.