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Finding the Fourth Proportional to 154,807.97, 213,637.22 and 115,976.97

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Solution

The fourth proportional to 154,807.97, 213,637.22 and 115,976.97 is: 160,049.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,807.97 : 213,637.22 = 115,976.97 : x
  2. Step 2: Convert to fraction form
    154,807.97/213,637.22 = 115,976.97/x
  3. Step 3: Cross multiply
    154,807.97x = 213,637.22 × 115,976.97
  4. Step 4: Simplify right side
    154,807.97x = 24,776,996,874.94
  5. Step 5: Solve for x
    x = 24,776,996,874.94/154,807.97
  6. Step 6: Final answer
    x = 160,049.88

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1.5x scale

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.