Home / 203,914.60-305,915.10-61,748.20

Finding the Fourth Proportional to 203,914.60, 305,915.10 and 61,748.20

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Solution

The fourth proportional to 203,914.60, 305,915.10 and 61,748.20 is: 92,635.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,914.60 : 305,915.10 = 61,748.20 : x
  2. Step 2: Convert to fraction form
    203,914.60/305,915.10 = 61,748.20/x
  3. Step 3: Cross multiply
    203,914.60x = 305,915.10 × 61,748.20
  4. Step 4: Simplify right side
    203,914.60x = 18,889,706,777.82
  5. Step 5: Solve for x
    x = 18,889,706,777.82/203,914.60
  6. Step 6: Final answer
    x = 92,635.38

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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.