Home / 187,789.59-281,487.56-69,385.41

Finding the Fourth Proportional to 187,789.59, 281,487.56 and 69,385.41

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Solution

The fourth proportional to 187,789.59, 281,487.56 and 69,385.41 is: 104,005.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,789.59 : 281,487.56 = 69,385.41 : x
  2. Step 2: Convert to fraction form
    187,789.59/281,487.56 = 69,385.41/x
  3. Step 3: Cross multiply
    187,789.59x = 281,487.56 × 69,385.41
  4. Step 4: Simplify right side
    187,789.59x = 19,531,129,413.57
  5. Step 5: Solve for x
    x = 19,531,129,413.57/187,789.59
  6. Step 6: Final answer
    x = 104,005.39

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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.