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Finding the Fourth Proportional to 187,104.60, 280,693.80 and 60,721.28

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Solution

The fourth proportional to 187,104.60, 280,693.80 and 60,721.28 is: 91,093.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,104.60 : 280,693.80 = 60,721.28 : x
  2. Step 2: Convert to fraction form
    187,104.60/280,693.80 = 60,721.28/x
  3. Step 3: Cross multiply
    187,104.60x = 280,693.80 × 60,721.28
  4. Step 4: Simplify right side
    187,104.60x = 17,044,086,824.06
  5. Step 5: Solve for x
    x = 17,044,086,824.06/187,104.60
  6. Step 6: Final answer
    x = 91,093.90

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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.