Home / 151,660.56-227,490.80-81,443.28

Finding the Fourth Proportional to 151,660.56, 227,490.80 and 81,443.28

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Solution

The fourth proportional to 151,660.56, 227,490.80 and 81,443.28 is: 122,164.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,660.56 : 227,490.80 = 81,443.28 : x
  2. Step 2: Convert to fraction form
    151,660.56/227,490.80 = 81,443.28/x
  3. Step 3: Cross multiply
    151,660.56x = 227,490.80 × 81,443.28
  4. Step 4: Simplify right side
    151,660.56x = 18,527,596,921.82
  5. Step 5: Solve for x
    x = 18,527,596,921.82/151,660.56
  6. Step 6: Final answer
    x = 122,164.90

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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.