Home / 149,747.77-206,656.18-81,769.06

Finding the Fourth Proportional to 149,747.77, 206,656.18 and 81,769.06

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Solution

The fourth proportional to 149,747.77, 206,656.18 and 81,769.06 is: 112,843.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,747.77 : 206,656.18 = 81,769.06 : x
  2. Step 2: Convert to fraction form
    149,747.77/206,656.18 = 81,769.06/x
  3. Step 3: Cross multiply
    149,747.77x = 206,656.18 × 81,769.06
  4. Step 4: Simplify right side
    149,747.77x = 16,898,080,860.73
  5. Step 5: Solve for x
    x = 16,898,080,860.73/149,747.77
  6. Step 6: Final answer
    x = 112,843.62

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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.