Home / 206,346.66-284,637.44-129,744.35

Finding the Fourth Proportional to 206,346.66, 284,637.44 and 129,744.35

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Solution

The fourth proportional to 206,346.66, 284,637.44 and 129,744.35 is: 178,971.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,346.66 : 284,637.44 = 129,744.35 : x
  2. Step 2: Convert to fraction form
    206,346.66/284,637.44 = 129,744.35/x
  3. Step 3: Cross multiply
    206,346.66x = 284,637.44 × 129,744.35
  4. Step 4: Simplify right side
    206,346.66x = 36,930,100,674.42
  5. Step 5: Solve for x
    x = 36,930,100,674.42/206,346.66
  6. Step 6: Final answer
    x = 178,971.16

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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.