Home / 140,554.86-210,494.46-80,400.96

Finding the Fourth Proportional to 140,554.86, 210,494.46 and 80,400.96

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Solution

The fourth proportional to 140,554.86, 210,494.46 and 80,400.96 is: 120,408.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,554.86 : 210,494.46 = 80,400.96 : x
  2. Step 2: Convert to fraction form
    140,554.86/210,494.46 = 80,400.96/x
  3. Step 3: Cross multiply
    140,554.86x = 210,494.46 × 80,400.96
  4. Step 4: Simplify right side
    140,554.86x = 16,923,956,658.68
  5. Step 5: Solve for x
    x = 16,923,956,658.68/140,554.86
  6. Step 6: Final answer
    x = 120,408.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.