Home / 141,660.09-195,490.49-77,997.90

Finding the Fourth Proportional to 141,660.09, 195,490.49 and 77,997.90

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Solution

The fourth proportional to 141,660.09, 195,490.49 and 77,997.90 is: 107,636.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,660.09 : 195,490.49 = 77,997.90 : x
  2. Step 2: Convert to fraction form
    141,660.09/195,490.49 = 77,997.90/x
  3. Step 3: Cross multiply
    141,660.09x = 195,490.49 × 77,997.90
  4. Step 4: Simplify right side
    141,660.09x = 15,247,847,299.98
  5. Step 5: Solve for x
    x = 15,247,847,299.98/141,660.09
  6. Step 6: Final answer
    x = 107,636.86

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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.