Home / 135,962.66-203,771.45-76,831.44

Finding the Fourth Proportional to 135,962.66, 203,771.45 and 76,831.44

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Solution

The fourth proportional to 135,962.66, 203,771.45 and 76,831.44 is: 115,149.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,962.66 : 203,771.45 = 76,831.44 : x
  2. Step 2: Convert to fraction form
    135,962.66/203,771.45 = 76,831.44/x
  3. Step 3: Cross multiply
    135,962.66x = 203,771.45 × 76,831.44
  4. Step 4: Simplify right side
    135,962.66x = 15,656,054,126.47
  5. Step 5: Solve for x
    x = 15,656,054,126.47/135,962.66
  6. Step 6: Final answer
    x = 115,149.66

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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.