Home / 130,286.40-195,429.60-122,413.20

Finding the Fourth Proportional to 130,286.40, 195,429.60 and 122,413.20

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Solution

The fourth proportional to 130,286.40, 195,429.60 and 122,413.20 is: 183,619.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,286.40 : 195,429.60 = 122,413.20 : x
  2. Step 2: Convert to fraction form
    130,286.40/195,429.60 = 122,413.20/x
  3. Step 3: Cross multiply
    130,286.40x = 195,429.60 × 122,413.20
  4. Step 4: Simplify right side
    130,286.40x = 23,923,162,710.72
  5. Step 5: Solve for x
    x = 23,923,162,710.72/130,286.40
  6. Step 6: Final answer
    x = 183,619.80

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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.