Home / 129,914.39-179,241.04-76,201.67

Finding the Fourth Proportional to 129,914.39, 179,241.04 and 76,201.67

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Solution

The fourth proportional to 129,914.39, 179,241.04 and 76,201.67 is: 105,134.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,914.39 : 179,241.04 = 76,201.67 : x
  2. Step 2: Convert to fraction form
    129,914.39/179,241.04 = 76,201.67/x
  3. Step 3: Cross multiply
    129,914.39x = 179,241.04 × 76,201.67
  4. Step 4: Simplify right side
    129,914.39x = 13,658,466,580.54
  5. Step 5: Solve for x
    x = 13,658,466,580.54/129,914.39
  6. Step 6: Final answer
    x = 105,134.36

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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.