Home / 207,690.12-312,185.46-137,066.58

Finding the Fourth Proportional to 207,690.12, 312,185.46 and 137,066.58

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Solution

The fourth proportional to 207,690.12, 312,185.46 and 137,066.58 is: 206,029.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,690.12 : 312,185.46 = 137,066.58 : x
  2. Step 2: Convert to fraction form
    207,690.12/312,185.46 = 137,066.58/x
  3. Step 3: Cross multiply
    207,690.12x = 312,185.46 × 137,066.58
  4. Step 4: Simplify right side
    207,690.12x = 42,790,193,327.93
  5. Step 5: Solve for x
    x = 42,790,193,327.93/207,690.12
  6. Step 6: Final answer
    x = 206,029.03

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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.