Home / 141,767.05-195,666.87-81,378.52

Finding the Fourth Proportional to 141,767.05, 195,666.87 and 81,378.52

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Solution

The fourth proportional to 141,767.05, 195,666.87 and 81,378.52 is: 112,318.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,767.05 : 195,666.87 = 81,378.52 : x
  2. Step 2: Convert to fraction form
    141,767.05/195,666.87 = 81,378.52/x
  3. Step 3: Cross multiply
    141,767.05x = 195,666.87 × 81,378.52
  4. Step 4: Simplify right side
    141,767.05x = 15,923,080,293.63
  5. Step 5: Solve for x
    x = 15,923,080,293.63/141,767.05
  6. Step 6: Final answer
    x = 112,318.63

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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.