Home / 141,728.43-195,422.94-105,857.94

Finding the Fourth Proportional to 141,728.43, 195,422.94 and 105,857.94

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Solution

The fourth proportional to 141,728.43, 195,422.94 and 105,857.94 is: 145,962.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,728.43 : 195,422.94 = 105,857.94 : x
  2. Step 2: Convert to fraction form
    141,728.43/195,422.94 = 105,857.94/x
  3. Step 3: Cross multiply
    141,728.43x = 195,422.94 × 105,857.94
  4. Step 4: Simplify right side
    141,728.43x = 20,687,069,857.14
  5. Step 5: Solve for x
    x = 20,687,069,857.14/141,728.43
  6. Step 6: Final answer
    x = 145,962.74

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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.