Home / 165,195.96-247,756.57-76,400.72

Finding the Fourth Proportional to 165,195.96, 247,756.57 and 76,400.72

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Solution

The fourth proportional to 165,195.96, 247,756.57 and 76,400.72 is: 114,583.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,195.96 : 247,756.57 = 76,400.72 : x
  2. Step 2: Convert to fraction form
    165,195.96/247,756.57 = 76,400.72/x
  3. Step 3: Cross multiply
    165,195.96x = 247,756.57 × 76,400.72
  4. Step 4: Simplify right side
    165,195.96x = 18,928,780,261.79
  5. Step 5: Solve for x
    x = 18,928,780,261.79/165,195.96
  6. Step 6: Final answer
    x = 114,583.80

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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.