Home / 135,821.42-187,413.66-75,392.58

Finding the Fourth Proportional to 135,821.42, 187,413.66 and 75,392.58

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Solution

The fourth proportional to 135,821.42, 187,413.66 and 75,392.58 is: 104,030.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,821.42 : 187,413.66 = 75,392.58 : x
  2. Step 2: Convert to fraction form
    135,821.42/187,413.66 = 75,392.58/x
  3. Step 3: Cross multiply
    135,821.42x = 187,413.66 × 75,392.58
  4. Step 4: Simplify right side
    135,821.42x = 14,129,599,354.64
  5. Step 5: Solve for x
    x = 14,129,599,354.64/135,821.42
  6. Step 6: Final answer
    x = 104,030.71

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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.