Home / 144,815.92-199,844.02-81,154.96

Finding the Fourth Proportional to 144,815.92, 199,844.02 and 81,154.96

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Solution

The fourth proportional to 144,815.92, 199,844.02 and 81,154.96 is: 111,992.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,815.92 : 199,844.02 = 81,154.96 : x
  2. Step 2: Convert to fraction form
    144,815.92/199,844.02 = 81,154.96/x
  3. Step 3: Cross multiply
    144,815.92x = 199,844.02 × 81,154.96
  4. Step 4: Simplify right side
    144,815.92x = 16,218,333,449.34
  5. Step 5: Solve for x
    x = 16,218,333,449.34/144,815.92
  6. Step 6: Final answer
    x = 111,992.75

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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.