Home / 135,255.56-186,658.20-74,825.18

Finding the Fourth Proportional to 135,255.56, 186,658.20 and 74,825.18

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Solution

The fourth proportional to 135,255.56, 186,658.20 and 74,825.18 is: 103,261.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,255.56 : 186,658.20 = 74,825.18 : x
  2. Step 2: Convert to fraction form
    135,255.56/186,658.20 = 74,825.18/x
  3. Step 3: Cross multiply
    135,255.56x = 186,658.20 × 74,825.18
  4. Step 4: Simplify right side
    135,255.56x = 13,966,733,413.48
  5. Step 5: Solve for x
    x = 13,966,733,413.48/135,255.56
  6. Step 6: Final answer
    x = 103,261.81

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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.