Home / 252,752.28-378,858.67-126,143.20

Finding the Fourth Proportional to 252,752.28, 378,858.67 and 126,143.20

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Solution

The fourth proportional to 252,752.28, 378,858.67 and 126,143.20 is: 189,080.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,752.28 : 378,858.67 = 126,143.20 : x
  2. Step 2: Convert to fraction form
    252,752.28/378,858.67 = 126,143.20/x
  3. Step 3: Cross multiply
    252,752.28x = 378,858.67 × 126,143.20
  4. Step 4: Simplify right side
    252,752.28x = 47,790,444,981.54
  5. Step 5: Solve for x
    x = 47,790,444,981.54/252,752.28
  6. Step 6: Final answer
    x = 189,080.17

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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.