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Finding the Fourth Proportional to 144,856.80, 199,902.60 and 81,195.12

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Solution

The fourth proportional to 144,856.80, 199,902.60 and 81,195.12 is: 112,049.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,856.80 : 199,902.60 = 81,195.12 : x
  2. Step 2: Convert to fraction form
    144,856.80/199,902.60 = 81,195.12/x
  3. Step 3: Cross multiply
    144,856.80x = 199,902.60 × 81,195.12
  4. Step 4: Simplify right side
    144,856.80x = 16,231,115,595.31
  5. Step 5: Solve for x
    x = 16,231,115,595.31/144,856.80
  6. Step 6: Final answer
    x = 112,049.39

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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.