Home / 135,398.07-203,098.32-51,136.20

Finding the Fourth Proportional to 135,398.07, 203,098.32 and 51,136.20

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Solution

The fourth proportional to 135,398.07, 203,098.32 and 51,136.20 is: 76,704.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,398.07 : 203,098.32 = 51,136.20 : x
  2. Step 2: Convert to fraction form
    135,398.07/203,098.32 = 51,136.20/x
  3. Step 3: Cross multiply
    135,398.07x = 203,098.32 × 51,136.20
  4. Step 4: Simplify right side
    135,398.07x = 10,385,676,311.18
  5. Step 5: Solve for x
    x = 10,385,676,311.18/135,398.07
  6. Step 6: Final answer
    x = 76,704.76

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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.