Home / 127,231.20-190,628.10-82,835.10

Finding the Fourth Proportional to 127,231.20, 190,628.10 and 82,835.10

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Solution

The fourth proportional to 127,231.20, 190,628.10 and 82,835.10 is: 124,110.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,231.20 : 190,628.10 = 82,835.10 : x
  2. Step 2: Convert to fraction form
    127,231.20/190,628.10 = 82,835.10/x
  3. Step 3: Cross multiply
    127,231.20x = 190,628.10 × 82,835.10
  4. Step 4: Simplify right side
    127,231.20x = 15,790,697,726.31
  5. Step 5: Solve for x
    x = 15,790,697,726.31/127,231.20
  6. Step 6: Final answer
    x = 124,110.26

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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.