Home / 141,930.92-195,861.03-78,264.56

Finding the Fourth Proportional to 141,930.92, 195,861.03 and 78,264.56

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Solution

The fourth proportional to 141,930.92, 195,861.03 and 78,264.56 is: 108,003.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,930.92 : 195,861.03 = 78,264.56 : x
  2. Step 2: Convert to fraction form
    141,930.92/195,861.03 = 78,264.56/x
  3. Step 3: Cross multiply
    141,930.92x = 195,861.03 × 78,264.56
  4. Step 4: Simplify right side
    141,930.92x = 15,328,977,334.10
  5. Step 5: Solve for x
    x = 15,328,977,334.10/141,930.92
  6. Step 6: Final answer
    x = 108,003.09

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1.5x scale

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.