Home / 144,773.21-199,795.20-81,131.51

Finding the Fourth Proportional to 144,773.21, 199,795.20 and 81,131.51

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Solution

The fourth proportional to 144,773.21, 199,795.20 and 81,131.51 is: 111,966.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,773.21 : 199,795.20 = 81,131.51 : x
  2. Step 2: Convert to fraction form
    144,773.21/199,795.20 = 81,131.51/x
  3. Step 3: Cross multiply
    144,773.21x = 199,795.20 × 81,131.51
  4. Step 4: Simplify right side
    144,773.21x = 16,209,686,266.75
  5. Step 5: Solve for x
    x = 16,209,686,266.75/144,773.21
  6. Step 6: Final answer
    x = 111,966.06

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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.