Home / 143,452.15-197,963.44-79,789.95

Finding the Fourth Proportional to 143,452.15, 197,963.44 and 79,789.95

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Solution

The fourth proportional to 143,452.15, 197,963.44 and 79,789.95 is: 110,109.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,452.15 : 197,963.44 = 79,789.95 : x
  2. Step 2: Convert to fraction form
    143,452.15/197,963.44 = 79,789.95/x
  3. Step 3: Cross multiply
    143,452.15x = 197,963.44 × 79,789.95
  4. Step 4: Simplify right side
    143,452.15x = 15,795,492,779.95
  5. Step 5: Solve for x
    x = 15,795,492,779.95/143,452.15
  6. Step 6: Final answer
    x = 110,109.84

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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.