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Finding the Fourth Proportional to 163,388.87, 225,497.78 and 91,768.89

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Solution

The fourth proportional to 163,388.87, 225,497.78 and 91,768.89 is: 126,652.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,388.87 : 225,497.78 = 91,768.89 : x
  2. Step 2: Convert to fraction form
    163,388.87/225,497.78 = 91,768.89/x
  3. Step 3: Cross multiply
    163,388.87x = 225,497.78 × 91,768.89
  4. Step 4: Simplify right side
    163,388.87x = 20,693,680,774.68
  5. Step 5: Solve for x
    x = 20,693,680,774.68/163,388.87
  6. Step 6: Final answer
    x = 126,652.94

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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.