Home / 127,229.40-190,844.10-82,942.65

Finding the Fourth Proportional to 127,229.40, 190,844.10 and 82,942.65

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Solution

The fourth proportional to 127,229.40, 190,844.10 and 82,942.65 is: 124,413.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,229.40 : 190,844.10 = 82,942.65 : x
  2. Step 2: Convert to fraction form
    127,229.40/190,844.10 = 82,942.65/x
  3. Step 3: Cross multiply
    127,229.40x = 190,844.10 × 82,942.65
  4. Step 4: Simplify right side
    127,229.40x = 15,829,115,390.87
  5. Step 5: Solve for x
    x = 15,829,115,390.87/127,229.40
  6. Step 6: Final answer
    x = 124,413.98

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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.