Home / 126,313.12-189,305.64-51,346

Finding the Fourth Proportional to 126,313.12, 189,305.64 and 51,346

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Solution

The fourth proportional to 126,313.12, 189,305.64 and 51,346 is: 76,952.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,313.12 : 189,305.64 = 51,346 : x
  2. Step 2: Convert to fraction form
    126,313.12/189,305.64 = 51,346/x
  3. Step 3: Cross multiply
    126,313.12x = 189,305.64 × 51,346
  4. Step 4: Simplify right side
    126,313.12x = 9,720,087,391.44
  5. Step 5: Solve for x
    x = 9,720,087,391.44/126,313.12
  6. Step 6: Final answer
    x = 76,952.32

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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.