Home / 135,915.56-203,946.66-79,865.18

Finding the Fourth Proportional to 135,915.56, 203,946.66 and 79,865.18

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Solution

The fourth proportional to 135,915.56, 203,946.66 and 79,865.18 is: 119,840.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,915.56 : 203,946.66 = 79,865.18 : x
  2. Step 2: Convert to fraction form
    135,915.56/203,946.66 = 79,865.18/x
  3. Step 3: Cross multiply
    135,915.56x = 203,946.66 × 79,865.18
  4. Step 4: Simplify right side
    135,915.56x = 16,288,236,711.30
  5. Step 5: Solve for x
    x = 16,288,236,711.30/135,915.56
  6. Step 6: Final answer
    x = 119,840.85

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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.