Home / 142,202.48-212,676.28-126,517.56

Finding the Fourth Proportional to 142,202.48, 212,676.28 and 126,517.56

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Solution

The fourth proportional to 142,202.48, 212,676.28 and 126,517.56 is: 189,218.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,202.48 : 212,676.28 = 126,517.56 : x
  2. Step 2: Convert to fraction form
    142,202.48/212,676.28 = 126,517.56/x
  3. Step 3: Cross multiply
    142,202.48x = 212,676.28 × 126,517.56
  4. Step 4: Simplify right side
    142,202.48x = 26,907,284,015.48
  5. Step 5: Solve for x
    x = 26,907,284,015.48/142,202.48
  6. Step 6: Final answer
    x = 189,218.11

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1.5x scale

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.