Home / 140,408.87-193,764.32-76,746.65

Finding the Fourth Proportional to 140,408.87, 193,764.32 and 76,746.65

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Solution

The fourth proportional to 140,408.87, 193,764.32 and 76,746.65 is: 105,910.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,408.87 : 193,764.32 = 76,746.65 : x
  2. Step 2: Convert to fraction form
    140,408.87/193,764.32 = 76,746.65/x
  3. Step 3: Cross multiply
    140,408.87x = 193,764.32 × 76,746.65
  4. Step 4: Simplify right side
    140,408.87x = 14,870,761,096.97
  5. Step 5: Solve for x
    x = 14,870,761,096.97/140,408.87
  6. Step 6: Final answer
    x = 105,910.41

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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.