Home / 127,120.48-190,679.28-31,058.52

Finding the Fourth Proportional to 127,120.48, 190,679.28 and 31,058.52

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Solution

The fourth proportional to 127,120.48, 190,679.28 and 31,058.52 is: 46,587.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,120.48 : 190,679.28 = 31,058.52 : x
  2. Step 2: Convert to fraction form
    127,120.48/190,679.28 = 31,058.52/x
  3. Step 3: Cross multiply
    127,120.48x = 190,679.28 × 31,058.52
  4. Step 4: Simplify right side
    127,120.48x = 5,922,216,231.47
  5. Step 5: Solve for x
    x = 5,922,216,231.47/127,120.48
  6. Step 6: Final answer
    x = 46,587.43

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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.