Home / 144,720.56-199,716.36-81,057.84

Finding the Fourth Proportional to 144,720.56, 199,716.36 and 81,057.84

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Solution

The fourth proportional to 144,720.56, 199,716.36 and 81,057.84 is: 111,860.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,720.56 : 199,716.36 = 81,057.84 : x
  2. Step 2: Convert to fraction form
    144,720.56/199,716.36 = 81,057.84/x
  3. Step 3: Cross multiply
    144,720.56x = 199,716.36 × 81,057.84
  4. Step 4: Simplify right side
    144,720.56x = 16,188,576,754.26
  5. Step 5: Solve for x
    x = 16,188,576,754.26/144,720.56
  6. Step 6: Final answer
    x = 111,860.93

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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.