Home / 89,248.46-133,872.82-66,782.56

Finding the Fourth Proportional to 89,248.46, 133,872.82 and 66,782.56

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Solution

The fourth proportional to 89,248.46, 133,872.82 and 66,782.56 is: 100,173.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,248.46 : 133,872.82 = 66,782.56 : x
  2. Step 2: Convert to fraction form
    89,248.46/133,872.82 = 66,782.56/x
  3. Step 3: Cross multiply
    89,248.46x = 133,872.82 × 66,782.56
  4. Step 4: Simplify right side
    89,248.46x = 8,940,369,634.02
  5. Step 5: Solve for x
    x = 8,940,369,634.02/89,248.46
  6. Step 6: Final answer
    x = 100,173.94

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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.