Home / 142,824.38-214,365.05-76,321.35

Finding the Fourth Proportional to 142,824.38, 214,365.05 and 76,321.35

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Solution

The fourth proportional to 142,824.38, 214,365.05 and 76,321.35 is: 114,550.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,824.38 : 214,365.05 = 76,321.35 : x
  2. Step 2: Convert to fraction form
    142,824.38/214,365.05 = 76,321.35/x
  3. Step 3: Cross multiply
    142,824.38x = 214,365.05 × 76,321.35
  4. Step 4: Simplify right side
    142,824.38x = 16,360,629,627.21
  5. Step 5: Solve for x
    x = 16,360,629,627.21/142,824.38
  6. Step 6: Final answer
    x = 114,550.68

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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.