Home / 129,609.25-194,238.91-67,323.49

Finding the Fourth Proportional to 129,609.25, 194,238.91 and 67,323.49

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Solution

The fourth proportional to 129,609.25, 194,238.91 and 67,323.49 is: 100,894.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,609.25 : 194,238.91 = 67,323.49 : x
  2. Step 2: Convert to fraction form
    129,609.25/194,238.91 = 67,323.49/x
  3. Step 3: Cross multiply
    129,609.25x = 194,238.91 × 67,323.49
  4. Step 4: Simplify right side
    129,609.25x = 13,076,840,913.55
  5. Step 5: Solve for x
    x = 13,076,840,913.55/129,609.25
  6. Step 6: Final answer
    x = 100,894.35

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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.