Home / 105,743.26-158,503.50-42,608.21

Finding the Fourth Proportional to 105,743.26, 158,503.50 and 42,608.21

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Solution

The fourth proportional to 105,743.26, 158,503.50 and 42,608.21 is: 63,867.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,743.26 : 158,503.50 = 42,608.21 : x
  2. Step 2: Convert to fraction form
    105,743.26/158,503.50 = 42,608.21/x
  3. Step 3: Cross multiply
    105,743.26x = 158,503.50 × 42,608.21
  4. Step 4: Simplify right side
    105,743.26x = 6,753,550,413.74
  5. Step 5: Solve for x
    x = 6,753,550,413.74/105,743.26
  6. Step 6: Final answer
    x = 63,867.43

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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.