Home / 141,505.43-195,282.55-81,087.74

Finding the Fourth Proportional to 141,505.43, 195,282.55 and 81,087.74

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Solution

The fourth proportional to 141,505.43, 195,282.55 and 81,087.74 is: 111,903.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,505.43 : 195,282.55 = 81,087.74 : x
  2. Step 2: Convert to fraction form
    141,505.43/195,282.55 = 81,087.74/x
  3. Step 3: Cross multiply
    141,505.43x = 195,282.55 × 81,087.74
  4. Step 4: Simplify right side
    141,505.43x = 15,835,019,765.88
  5. Step 5: Solve for x
    x = 15,835,019,765.88/141,505.43
  6. Step 6: Final answer
    x = 111,903.98

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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.