Home / 217,747.80-326,783.70-112,512.60

Finding the Fourth Proportional to 217,747.80, 326,783.70 and 112,512.60

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Solution

The fourth proportional to 217,747.80, 326,783.70 and 112,512.60 is: 168,852.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,747.80 : 326,783.70 = 112,512.60 : x
  2. Step 2: Convert to fraction form
    217,747.80/326,783.70 = 112,512.60/x
  3. Step 3: Cross multiply
    217,747.80x = 326,783.70 × 112,512.60
  4. Step 4: Simplify right side
    217,747.80x = 36,767,283,724.62
  5. Step 5: Solve for x
    x = 36,767,283,724.62/217,747.80
  6. Step 6: Final answer
    x = 168,852.61

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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.