Home / 126,342.69-189,513.57-51,446.14

Finding the Fourth Proportional to 126,342.69, 189,513.57 and 51,446.14

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Solution

The fourth proportional to 126,342.69, 189,513.57 and 51,446.14 is: 77,169.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,342.69 : 189,513.57 = 51,446.14 : x
  2. Step 2: Convert to fraction form
    126,342.69/189,513.57 = 51,446.14/x
  3. Step 3: Cross multiply
    126,342.69x = 189,513.57 × 51,446.14
  4. Step 4: Simplify right side
    126,342.69x = 9,749,741,373.26
  5. Step 5: Solve for x
    x = 9,749,741,373.26/126,342.69
  6. Step 6: Final answer
    x = 77,169.02

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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.