Home / 252,150.03-378,270-83,680.56

Finding the Fourth Proportional to 252,150.03, 378,270 and 83,680.56

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Solution

The fourth proportional to 252,150.03, 378,270 and 83,680.56 is: 125,535.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,150.03 : 378,270 = 83,680.56 : x
  2. Step 2: Convert to fraction form
    252,150.03/378,270 = 83,680.56/x
  3. Step 3: Cross multiply
    252,150.03x = 378,270 × 83,680.56
  4. Step 4: Simplify right side
    252,150.03x = 31,653,845,431.20
  5. Step 5: Solve for x
    x = 31,653,845,431.20/252,150.03
  6. Step 6: Final answer
    x = 125,535.76

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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.