Home / 206,619.58-285,090.60-135,104.68

Finding the Fourth Proportional to 206,619.58, 285,090.60 and 135,104.68

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Solution

The fourth proportional to 206,619.58, 285,090.60 and 135,104.68 is: 186,415.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,619.58 : 285,090.60 = 135,104.68 : x
  2. Step 2: Convert to fraction form
    206,619.58/285,090.60 = 135,104.68/x
  3. Step 3: Cross multiply
    206,619.58x = 285,090.60 × 135,104.68
  4. Step 4: Simplify right side
    206,619.58x = 38,517,074,284.01
  5. Step 5: Solve for x
    x = 38,517,074,284.01/206,619.58
  6. Step 6: Final answer
    x = 186,415.41

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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.