Home / 126,208.72-189,308.49-51,326.74

Finding the Fourth Proportional to 126,208.72, 189,308.49 and 51,326.74

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Solution

The fourth proportional to 126,208.72, 189,308.49 and 51,326.74 is: 76,988.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,208.72 : 189,308.49 = 51,326.74 : x
  2. Step 2: Convert to fraction form
    126,208.72/189,308.49 = 51,326.74/x
  3. Step 3: Cross multiply
    126,208.72x = 189,308.49 × 51,326.74
  4. Step 4: Simplify right side
    126,208.72x = 9,716,587,646.02
  5. Step 5: Solve for x
    x = 9,716,587,646.02/126,208.72
  6. Step 6: Final answer
    x = 76,988.24

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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.