Home / 144,305.82-199,146.27-80,643.75

Finding the Fourth Proportional to 144,305.82, 199,146.27 and 80,643.75

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Solution

The fourth proportional to 144,305.82, 199,146.27 and 80,643.75 is: 111,290.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,305.82 : 199,146.27 = 80,643.75 : x
  2. Step 2: Convert to fraction form
    144,305.82/199,146.27 = 80,643.75/x
  3. Step 3: Cross multiply
    144,305.82x = 199,146.27 × 80,643.75
  4. Step 4: Simplify right side
    144,305.82x = 16,059,902,011.31
  5. Step 5: Solve for x
    x = 16,059,902,011.31/144,305.82
  6. Step 6: Final answer
    x = 111,290.74

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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.