Home / 141,912.12-195,838.52-78,250.07

Finding the Fourth Proportional to 141,912.12, 195,838.52 and 78,250.07

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Solution

The fourth proportional to 141,912.12, 195,838.52 and 78,250.07 is: 107,984.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,912.12 : 195,838.52 = 78,250.07 : x
  2. Step 2: Convert to fraction form
    141,912.12/195,838.52 = 78,250.07/x
  3. Step 3: Cross multiply
    141,912.12x = 195,838.52 × 78,250.07
  4. Step 4: Simplify right side
    141,912.12x = 15,324,377,898.70
  5. Step 5: Solve for x
    x = 15,324,377,898.70/141,912.12
  6. Step 6: Final answer
    x = 107,984.98

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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.