Home / 187,413.50-281,120.52-76,605.50

Finding the Fourth Proportional to 187,413.50, 281,120.52 and 76,605.50

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Solution

The fourth proportional to 187,413.50, 281,120.52 and 76,605.50 is: 114,908.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,413.50 : 281,120.52 = 76,605.50 : x
  2. Step 2: Convert to fraction form
    187,413.50/281,120.52 = 76,605.50/x
  3. Step 3: Cross multiply
    187,413.50x = 281,120.52 × 76,605.50
  4. Step 4: Simplify right side
    187,413.50x = 21,535,377,994.86
  5. Step 5: Solve for x
    x = 21,535,377,994.86/187,413.50
  6. Step 6: Final answer
    x = 114,908.36

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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.