Home / 144,721.46-199,719.51-81,057.86

Finding the Fourth Proportional to 144,721.46, 199,719.51 and 81,057.86

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Solution

The fourth proportional to 144,721.46, 199,719.51 and 81,057.86 is: 111,862.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,721.46 : 199,719.51 = 81,057.86 : x
  2. Step 2: Convert to fraction form
    144,721.46/199,719.51 = 81,057.86/x
  3. Step 3: Cross multiply
    144,721.46x = 199,719.51 × 81,057.86
  4. Step 4: Simplify right side
    144,721.46x = 16,188,836,080.85
  5. Step 5: Solve for x
    x = 16,188,836,080.85/144,721.46
  6. Step 6: Final answer
    x = 111,862.03

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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.