Home / 207,789.28-286,766.80-117,162.72

Finding the Fourth Proportional to 207,789.28, 286,766.80 and 117,162.72

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Solution

The fourth proportional to 207,789.28, 286,766.80 and 117,162.72 is: 161,694.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,789.28 : 286,766.80 = 117,162.72 : x
  2. Step 2: Convert to fraction form
    207,789.28/286,766.80 = 117,162.72/x
  3. Step 3: Cross multiply
    207,789.28x = 286,766.80 × 117,162.72
  4. Step 4: Simplify right side
    207,789.28x = 33,598,378,293.70
  5. Step 5: Solve for x
    x = 33,598,378,293.70/207,789.28
  6. Step 6: Final answer
    x = 161,694.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.