Home / 144,517.94-199,515.12-87,171.73

Finding the Fourth Proportional to 144,517.94, 199,515.12 and 87,171.73

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Solution

The fourth proportional to 144,517.94, 199,515.12 and 87,171.73 is: 120,345.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,517.94 : 199,515.12 = 87,171.73 : x
  2. Step 2: Convert to fraction form
    144,517.94/199,515.12 = 87,171.73/x
  3. Step 3: Cross multiply
    144,517.94x = 199,515.12 × 87,171.73
  4. Step 4: Simplify right side
    144,517.94x = 17,392,077,345.88
  5. Step 5: Solve for x
    x = 17,392,077,345.88/144,517.94
  6. Step 6: Final answer
    x = 120,345.46

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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.