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Finding the Fourth Proportional to 187,877.64, 281,908.70 and 75,553.32

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Solution

The fourth proportional to 187,877.64, 281,908.70 and 75,553.32 is: 113,367.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,877.64 : 281,908.70 = 75,553.32 : x
  2. Step 2: Convert to fraction form
    187,877.64/281,908.70 = 75,553.32/x
  3. Step 3: Cross multiply
    187,877.64x = 281,908.70 × 75,553.32
  4. Step 4: Simplify right side
    187,877.64x = 21,299,138,221.88
  5. Step 5: Solve for x
    x = 21,299,138,221.88/187,877.64
  6. Step 6: Final answer
    x = 113,367.07

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1.5x scale

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.