Home / 131,078.50-196,194.84-67,811.52

Finding the Fourth Proportional to 131,078.50, 196,194.84 and 67,811.52

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Solution

The fourth proportional to 131,078.50, 196,194.84 and 67,811.52 is: 101,498.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,078.50 : 196,194.84 = 67,811.52 : x
  2. Step 2: Convert to fraction form
    131,078.50/196,194.84 = 67,811.52/x
  3. Step 3: Cross multiply
    131,078.50x = 196,194.84 × 67,811.52
  4. Step 4: Simplify right side
    131,078.50x = 13,304,270,316.56
  5. Step 5: Solve for x
    x = 13,304,270,316.56/131,078.50
  6. Step 6: Final answer
    x = 101,498.49

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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.