Home / 136,040.54-187,788.26-90,702

Finding the Fourth Proportional to 136,040.54, 187,788.26 and 90,702

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Solution

The fourth proportional to 136,040.54, 187,788.26 and 90,702 is: 125,203.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,040.54 : 187,788.26 = 90,702 : x
  2. Step 2: Convert to fraction form
    136,040.54/187,788.26 = 90,702/x
  3. Step 3: Cross multiply
    136,040.54x = 187,788.26 × 90,702
  4. Step 4: Simplify right side
    136,040.54x = 17,032,770,758.52
  5. Step 5: Solve for x
    x = 17,032,770,758.52/136,040.54
  6. Step 6: Final answer
    x = 125,203.64

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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.