Home / 136,942.20-205,413.30-125,537.40

Finding the Fourth Proportional to 136,942.20, 205,413.30 and 125,537.40

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Solution

The fourth proportional to 136,942.20, 205,413.30 and 125,537.40 is: 188,306.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,942.20 : 205,413.30 = 125,537.40 : x
  2. Step 2: Convert to fraction form
    136,942.20/205,413.30 = 125,537.40/x
  3. Step 3: Cross multiply
    136,942.20x = 205,413.30 × 125,537.40
  4. Step 4: Simplify right side
    136,942.20x = 25,787,051,607.42
  5. Step 5: Solve for x
    x = 25,787,051,607.42/136,942.20
  6. Step 6: Final answer
    x = 188,306.10

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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.