Home / 140,511.72-193,909.48-80,087.96

Finding the Fourth Proportional to 140,511.72, 193,909.48 and 80,087.96

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Solution

The fourth proportional to 140,511.72, 193,909.48 and 80,087.96 is: 110,523.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,511.72 : 193,909.48 = 80,087.96 : x
  2. Step 2: Convert to fraction form
    140,511.72/193,909.48 = 80,087.96/x
  3. Step 3: Cross multiply
    140,511.72x = 193,909.48 × 80,087.96
  4. Step 4: Simplify right side
    140,511.72x = 15,529,814,677.86
  5. Step 5: Solve for x
    x = 15,529,814,677.86/140,511.72
  6. Step 6: Final answer
    x = 110,523.27

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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.