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Finding the Fourth Proportional to 187,419, 281,157.72 and 61,029.39

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Solution

The fourth proportional to 187,419, 281,157.72 and 61,029.39 is: 91,553.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,419 : 281,157.72 = 61,029.39 : x
  2. Step 2: Convert to fraction form
    187,419/281,157.72 = 61,029.39/x
  3. Step 3: Cross multiply
    187,419x = 281,157.72 × 61,029.39
  4. Step 4: Simplify right side
    187,419x = 17,158,884,145.39
  5. Step 5: Solve for x
    x = 17,158,884,145.39/187,419
  6. Step 6: Final answer
    x = 91,553.60

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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.