Home / 144,960.14-199,997.82-81,285.63

Finding the Fourth Proportional to 144,960.14, 199,997.82 and 81,285.63

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Solution

The fourth proportional to 144,960.14, 199,997.82 and 81,285.63 is: 112,147.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,960.14 : 199,997.82 = 81,285.63 : x
  2. Step 2: Convert to fraction form
    144,960.14/199,997.82 = 81,285.63/x
  3. Step 3: Cross multiply
    144,960.14x = 199,997.82 × 81,285.63
  4. Step 4: Simplify right side
    144,960.14x = 16,256,948,797.33
  5. Step 5: Solve for x
    x = 16,256,948,797.33/144,960.14
  6. Step 6: Final answer
    x = 112,147.72

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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.