Home / 141,735.72-195,586.50-78,069.96

Finding the Fourth Proportional to 141,735.72, 195,586.50 and 78,069.96

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Solution

The fourth proportional to 141,735.72, 195,586.50 and 78,069.96 is: 107,731.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,735.72 : 195,586.50 = 78,069.96 : x
  2. Step 2: Convert to fraction form
    141,735.72/195,586.50 = 78,069.96/x
  3. Step 3: Cross multiply
    141,735.72x = 195,586.50 × 78,069.96
  4. Step 4: Simplify right side
    141,735.72x = 15,269,430,231.54
  5. Step 5: Solve for x
    x = 15,269,430,231.54/141,735.72
  6. Step 6: Final answer
    x = 107,731.70

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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.