Home / 141,910.64-195,838.04-78,250.72

Finding the Fourth Proportional to 141,910.64, 195,838.04 and 78,250.72

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Solution

The fourth proportional to 141,910.64, 195,838.04 and 78,250.72 is: 107,986.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,910.64 : 195,838.04 = 78,250.72 : x
  2. Step 2: Convert to fraction form
    141,910.64/195,838.04 = 78,250.72/x
  3. Step 3: Cross multiply
    141,910.64x = 195,838.04 × 78,250.72
  4. Step 4: Simplify right side
    141,910.64x = 15,324,467,633.39
  5. Step 5: Solve for x
    x = 15,324,467,633.39/141,910.64
  6. Step 6: Final answer
    x = 107,986.74

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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.