Home / 137,696.25-190,027.75-86,044.55

Finding the Fourth Proportional to 137,696.25, 190,027.75 and 86,044.55

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Solution

The fourth proportional to 137,696.25, 190,027.75 and 86,044.55 is: 118,745.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,696.25 : 190,027.75 = 86,044.55 : x
  2. Step 2: Convert to fraction form
    137,696.25/190,027.75 = 86,044.55/x
  3. Step 3: Cross multiply
    137,696.25x = 190,027.75 × 86,044.55
  4. Step 4: Simplify right side
    137,696.25x = 16,350,852,593.70
  5. Step 5: Solve for x
    x = 16,350,852,593.70/137,696.25
  6. Step 6: Final answer
    x = 118,745.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.