Home / 144,451.12-199,361.34-80,802.12

Finding the Fourth Proportional to 144,451.12, 199,361.34 and 80,802.12

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Solution

The fourth proportional to 144,451.12, 199,361.34 and 80,802.12 is: 111,517.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,451.12 : 199,361.34 = 80,802.12 : x
  2. Step 2: Convert to fraction form
    144,451.12/199,361.34 = 80,802.12/x
  3. Step 3: Cross multiply
    144,451.12x = 199,361.34 × 80,802.12
  4. Step 4: Simplify right side
    144,451.12x = 16,108,818,918.04
  5. Step 5: Solve for x
    x = 16,108,818,918.04/144,451.12
  6. Step 6: Final answer
    x = 111,517.44

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1.5x scale

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.