Home / 140,559.64-193,972.11-76,897.44

Finding the Fourth Proportional to 140,559.64, 193,972.11 and 76,897.44

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Solution

The fourth proportional to 140,559.64, 193,972.11 and 76,897.44 is: 106,118.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,559.64 : 193,972.11 = 76,897.44 : x
  2. Step 2: Convert to fraction form
    140,559.64/193,972.11 = 76,897.44/x
  3. Step 3: Cross multiply
    140,559.64x = 193,972.11 × 76,897.44
  4. Step 4: Simplify right side
    140,559.64x = 14,915,958,305.91
  5. Step 5: Solve for x
    x = 14,915,958,305.91/140,559.64
  6. Step 6: Final answer
    x = 106,118.36

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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.