Home / 144,420.93-199,306.31-80,758.58

Finding the Fourth Proportional to 144,420.93, 199,306.31 and 80,758.58

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Solution

The fourth proportional to 144,420.93, 199,306.31 and 80,758.58 is: 111,449.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,420.93 : 199,306.31 = 80,758.58 : x
  2. Step 2: Convert to fraction form
    144,420.93/199,306.31 = 80,758.58/x
  3. Step 3: Cross multiply
    144,420.93x = 199,306.31 × 80,758.58
  4. Step 4: Simplify right side
    144,420.93x = 16,095,693,180.32
  5. Step 5: Solve for x
    x = 16,095,693,180.32/144,420.93
  6. Step 6: Final answer
    x = 111,449.87

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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.