Home / 137,815.40-206,723.10-106,711.40

Finding the Fourth Proportional to 137,815.40, 206,723.10 and 106,711.40

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Solution

The fourth proportional to 137,815.40, 206,723.10 and 106,711.40 is: 160,067.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,815.40 : 206,723.10 = 106,711.40 : x
  2. Step 2: Convert to fraction form
    137,815.40/206,723.10 = 106,711.40/x
  3. Step 3: Cross multiply
    137,815.40x = 206,723.10 × 106,711.40
  4. Step 4: Simplify right side
    137,815.40x = 22,059,711,413.34
  5. Step 5: Solve for x
    x = 22,059,711,413.34/137,815.40
  6. Step 6: Final answer
    x = 160,067.10

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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.