Home / 133,915.05-200,732.40-45,137.87

Finding the Fourth Proportional to 133,915.05, 200,732.40 and 45,137.87

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Solution

The fourth proportional to 133,915.05, 200,732.40 and 45,137.87 is: 67,659.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,915.05 : 200,732.40 = 45,137.87 : x
  2. Step 2: Convert to fraction form
    133,915.05/200,732.40 = 45,137.87/x
  3. Step 3: Cross multiply
    133,915.05x = 200,732.40 × 45,137.87
  4. Step 4: Simplify right side
    133,915.05x = 9,060,631,972.33
  5. Step 5: Solve for x
    x = 9,060,631,972.33/133,915.05
  6. Step 6: Final answer
    x = 67,659.55

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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.