Home / 142,228.70-213,427.22-52,334.54

Finding the Fourth Proportional to 142,228.70, 213,427.22 and 52,334.54

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Solution

The fourth proportional to 142,228.70, 213,427.22 and 52,334.54 is: 78,532.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,228.70 : 213,427.22 = 52,334.54 : x
  2. Step 2: Convert to fraction form
    142,228.70/213,427.22 = 52,334.54/x
  3. Step 3: Cross multiply
    142,228.70x = 213,427.22 × 52,334.54
  4. Step 4: Simplify right side
    142,228.70x = 11,169,614,951.85
  5. Step 5: Solve for x
    x = 11,169,614,951.85/142,228.70
  6. Step 6: Final answer
    x = 78,532.78

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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.