Home / 164,728.20-227,330.19-91,141.79

Finding the Fourth Proportional to 164,728.20, 227,330.19 and 91,141.79

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Solution

The fourth proportional to 164,728.20, 227,330.19 and 91,141.79 is: 125,778.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,728.20 : 227,330.19 = 91,141.79 : x
  2. Step 2: Convert to fraction form
    164,728.20/227,330.19 = 91,141.79/x
  3. Step 3: Cross multiply
    164,728.20x = 227,330.19 × 91,141.79
  4. Step 4: Simplify right side
    164,728.20x = 20,719,279,300.99
  5. Step 5: Solve for x
    x = 20,719,279,300.99/164,728.20
  6. Step 6: Final answer
    x = 125,778.58

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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.