Home / 144,428.67-199,320.75-80,771.18

Finding the Fourth Proportional to 144,428.67, 199,320.75 and 80,771.18

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Solution

The fourth proportional to 144,428.67, 199,320.75 and 80,771.18 is: 111,469.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,428.67 : 199,320.75 = 80,771.18 : x
  2. Step 2: Convert to fraction form
    144,428.67/199,320.75 = 80,771.18/x
  3. Step 3: Cross multiply
    144,428.67x = 199,320.75 × 80,771.18
  4. Step 4: Simplify right side
    144,428.67x = 16,099,371,179.38
  5. Step 5: Solve for x
    x = 16,099,371,179.38/144,428.67
  6. Step 6: Final answer
    x = 111,469.36

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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.