Home / 151,685.47-209,284.19-91,247.73

Finding the Fourth Proportional to 151,685.47, 209,284.19 and 91,247.73

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Solution

The fourth proportional to 151,685.47, 209,284.19 and 91,247.73 is: 125,896.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,685.47 : 209,284.19 = 91,247.73 : x
  2. Step 2: Convert to fraction form
    151,685.47/209,284.19 = 91,247.73/x
  3. Step 3: Cross multiply
    151,685.47x = 209,284.19 × 91,247.73
  4. Step 4: Simplify right side
    151,685.47x = 19,096,705,759.73
  5. Step 5: Solve for x
    x = 19,096,705,759.73/151,685.47
  6. Step 6: Final answer
    x = 125,896.74

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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.