Home / 140,073.22-193,297.86-76,413.28

Finding the Fourth Proportional to 140,073.22, 193,297.86 and 76,413.28

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Solution

The fourth proportional to 140,073.22, 193,297.86 and 76,413.28 is: 105,448.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,073.22 : 193,297.86 = 76,413.28 : x
  2. Step 2: Convert to fraction form
    140,073.22/193,297.86 = 76,413.28/x
  3. Step 3: Cross multiply
    140,073.22x = 193,297.86 × 76,413.28
  4. Step 4: Simplify right side
    140,073.22x = 14,770,523,499.58
  5. Step 5: Solve for x
    x = 14,770,523,499.58/140,073.22
  6. Step 6: Final answer
    x = 105,448.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.