Home / 213,749.28-320,872.41-125,066.43

Finding the Fourth Proportional to 213,749.28, 320,872.41 and 125,066.43

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Solution

The fourth proportional to 213,749.28, 320,872.41 and 125,066.43 is: 187,745.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,749.28 : 320,872.41 = 125,066.43 : x
  2. Step 2: Convert to fraction form
    213,749.28/320,872.41 = 125,066.43/x
  3. Step 3: Cross multiply
    213,749.28x = 320,872.41 × 125,066.43
  4. Step 4: Simplify right side
    213,749.28x = 40,130,366,804.20
  5. Step 5: Solve for x
    x = 40,130,366,804.20/213,749.28
  6. Step 6: Final answer
    x = 187,745.04

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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.