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Finding the Fourth Proportional to 187,054.33, 280,693.28 and 68,737.63

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Solution

The fourth proportional to 187,054.33, 280,693.28 and 68,737.63 is: 103,147.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,054.33 : 280,693.28 = 68,737.63 : x
  2. Step 2: Convert to fraction form
    187,054.33/280,693.28 = 68,737.63/x
  3. Step 3: Cross multiply
    187,054.33x = 280,693.28 × 68,737.63
  4. Step 4: Simplify right side
    187,054.33x = 19,294,190,824.13
  5. Step 5: Solve for x
    x = 19,294,190,824.13/187,054.33
  6. Step 6: Final answer
    x = 103,147.52

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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.