Home / 206,656.09-285,112.04-135,077.41

Finding the Fourth Proportional to 206,656.09, 285,112.04 and 135,077.41

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Solution

The fourth proportional to 206,656.09, 285,112.04 and 135,077.41 is: 186,358.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,656.09 : 285,112.04 = 135,077.41 : x
  2. Step 2: Convert to fraction form
    206,656.09/285,112.04 = 135,077.41/x
  3. Step 3: Cross multiply
    206,656.09x = 285,112.04 × 135,077.41
  4. Step 4: Simplify right side
    206,656.09x = 38,512,195,247.63
  5. Step 5: Solve for x
    x = 38,512,195,247.63/206,656.09
  6. Step 6: Final answer
    x = 186,358.87

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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.