Home / 445,976.72-668,959.27-109,020.35

Finding the Fourth Proportional to 445,976.72, 668,959.27 and 109,020.35

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Solution

The fourth proportional to 445,976.72, 668,959.27 and 109,020.35 is: 163,529.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,976.72 : 668,959.27 = 109,020.35 : x
  2. Step 2: Convert to fraction form
    445,976.72/668,959.27 = 109,020.35/x
  3. Step 3: Cross multiply
    445,976.72x = 668,959.27 × 109,020.35
  4. Step 4: Simplify right side
    445,976.72x = 72,930,170,133.80
  5. Step 5: Solve for x
    x = 72,930,170,133.80/445,976.72
  6. Step 6: Final answer
    x = 163,529.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.