Home / 135,704.64-203,591.68-42,211.20

Finding the Fourth Proportional to 135,704.64, 203,591.68 and 42,211.20

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Solution

The fourth proportional to 135,704.64, 203,591.68 and 42,211.20 is: 63,327.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,704.64 : 203,591.68 = 42,211.20 : x
  2. Step 2: Convert to fraction form
    135,704.64/203,591.68 = 42,211.20/x
  3. Step 3: Cross multiply
    135,704.64x = 203,591.68 × 42,211.20
  4. Step 4: Simplify right side
    135,704.64x = 8,593,849,122.82
  5. Step 5: Solve for x
    x = 8,593,849,122.82/135,704.64
  6. Step 6: Final answer
    x = 63,327.60

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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.