Home / 127,851.21-191,746.05-39,105.48

Finding the Fourth Proportional to 127,851.21, 191,746.05 and 39,105.48

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Solution

The fourth proportional to 127,851.21, 191,746.05 and 39,105.48 is: 58,648.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,851.21 : 191,746.05 = 39,105.48 : x
  2. Step 2: Convert to fraction form
    127,851.21/191,746.05 = 39,105.48/x
  3. Step 3: Cross multiply
    127,851.21x = 191,746.05 × 39,105.48
  4. Step 4: Simplify right side
    127,851.21x = 7,498,321,323.35
  5. Step 5: Solve for x
    x = 7,498,321,323.35/127,851.21
  6. Step 6: Final answer
    x = 58,648.81

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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.