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Finding the Fourth Proportional to 171,087, 256,644.84 and 63,045.78

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Solution

The fourth proportional to 171,087, 256,644.84 and 63,045.78 is: 94,573.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,087 : 256,644.84 = 63,045.78 : x
  2. Step 2: Convert to fraction form
    171,087/256,644.84 = 63,045.78/x
  3. Step 3: Cross multiply
    171,087x = 256,644.84 × 63,045.78
  4. Step 4: Simplify right side
    171,087x = 16,180,374,120.78
  5. Step 5: Solve for x
    x = 16,180,374,120.78/171,087
  6. Step 6: Final answer
    x = 94,573.95

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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.