Home / 127,610.20-191,201.46-90,108.01

Finding the Fourth Proportional to 127,610.20, 191,201.46 and 90,108.01

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Solution

The fourth proportional to 127,610.20, 191,201.46 and 90,108.01 is: 135,011.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,610.20 : 191,201.46 = 90,108.01 : x
  2. Step 2: Convert to fraction form
    127,610.20/191,201.46 = 90,108.01/x
  3. Step 3: Cross multiply
    127,610.20x = 191,201.46 × 90,108.01
  4. Step 4: Simplify right side
    127,610.20x = 17,228,783,069.69
  5. Step 5: Solve for x
    x = 17,228,783,069.69/127,610.20
  6. Step 6: Final answer
    x = 135,011.02

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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.