Home / 137,790.20-206,685.30-44,305.40

Finding the Fourth Proportional to 137,790.20, 206,685.30 and 44,305.40

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Solution

The fourth proportional to 137,790.20, 206,685.30 and 44,305.40 is: 66,458.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,790.20 : 206,685.30 = 44,305.40 : x
  2. Step 2: Convert to fraction form
    137,790.20/206,685.30 = 44,305.40/x
  3. Step 3: Cross multiply
    137,790.20x = 206,685.30 × 44,305.40
  4. Step 4: Simplify right side
    137,790.20x = 9,157,274,890.62
  5. Step 5: Solve for x
    x = 9,157,274,890.62/137,790.20
  6. Step 6: Final answer
    x = 66,458.10

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1.5x scale

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.