Home / 144,871.15-199,942.69-80,354.65

Finding the Fourth Proportional to 144,871.15, 199,942.69 and 80,354.65

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Solution

The fourth proportional to 144,871.15, 199,942.69 and 80,354.65 is: 110,900.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,871.15 : 199,942.69 = 80,354.65 : x
  2. Step 2: Convert to fraction form
    144,871.15/199,942.69 = 80,354.65/x
  3. Step 3: Cross multiply
    144,871.15x = 199,942.69 × 80,354.65
  4. Step 4: Simplify right side
    144,871.15x = 16,066,324,875.01
  5. Step 5: Solve for x
    x = 16,066,324,875.01/144,871.15
  6. Step 6: Final answer
    x = 110,900.79

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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.