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Finding the Fourth Proportional to 122,587.25, 183,880.89 and 39,481.25

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Solution

The fourth proportional to 122,587.25, 183,880.89 and 39,481.25 is: 59,221.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,587.25 : 183,880.89 = 39,481.25 : x
  2. Step 2: Convert to fraction form
    122,587.25/183,880.89 = 39,481.25/x
  3. Step 3: Cross multiply
    122,587.25x = 183,880.89 × 39,481.25
  4. Step 4: Simplify right side
    122,587.25x = 7,259,847,190.91
  5. Step 5: Solve for x
    x = 7,259,847,190.91/122,587.25
  6. Step 6: Final answer
    x = 59,221.88

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1.5x scale

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.