Home / 126,979.52-190,396.37-38,206.76

Finding the Fourth Proportional to 126,979.52, 190,396.37 and 38,206.76

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Solution

The fourth proportional to 126,979.52, 190,396.37 and 38,206.76 is: 57,288.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,979.52 : 190,396.37 = 38,206.76 : x
  2. Step 2: Convert to fraction form
    126,979.52/190,396.37 = 38,206.76/x
  3. Step 3: Cross multiply
    126,979.52x = 190,396.37 × 38,206.76
  4. Step 4: Simplify right side
    126,979.52x = 7,274,427,557.00
  5. Step 5: Solve for x
    x = 7,274,427,557.00/126,979.52
  6. Step 6: Final answer
    x = 57,288.20

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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.