Home / 144,127.20-198,895.02-80,464.44

Finding the Fourth Proportional to 144,127.20, 198,895.02 and 80,464.44

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Solution

The fourth proportional to 144,127.20, 198,895.02 and 80,464.44 is: 111,040.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,127.20 : 198,895.02 = 80,464.44 : x
  2. Step 2: Convert to fraction form
    144,127.20/198,895.02 = 80,464.44/x
  3. Step 3: Cross multiply
    144,127.20x = 198,895.02 × 80,464.44
  4. Step 4: Simplify right side
    144,127.20x = 16,003,976,403.09
  5. Step 5: Solve for x
    x = 16,003,976,403.09/144,127.20
  6. Step 6: Final answer
    x = 111,040.64

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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.