Home / 126,375.11-189,509.96-51,444.39

Finding the Fourth Proportional to 126,375.11, 189,509.96 and 51,444.39

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Solution

The fourth proportional to 126,375.11, 189,509.96 and 51,444.39 is: 77,145.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,375.11 : 189,509.96 = 51,444.39 : x
  2. Step 2: Convert to fraction form
    126,375.11/189,509.96 = 51,444.39/x
  3. Step 3: Cross multiply
    126,375.11x = 189,509.96 × 51,444.39
  4. Step 4: Simplify right side
    126,375.11x = 9,749,224,033.90
  5. Step 5: Solve for x
    x = 9,749,224,033.90/126,375.11
  6. Step 6: Final answer
    x = 77,145.13

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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.