Home / 149,958.66-206,943-81,975.94

Finding the Fourth Proportional to 149,958.66, 206,943 and 81,975.94

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Solution

The fourth proportional to 149,958.66, 206,943 and 81,975.94 is: 113,126.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,958.66 : 206,943 = 81,975.94 : x
  2. Step 2: Convert to fraction form
    149,958.66/206,943 = 81,975.94/x
  3. Step 3: Cross multiply
    149,958.66x = 206,943 × 81,975.94
  4. Step 4: Simplify right side
    149,958.66x = 16,964,346,951.42
  5. Step 5: Solve for x
    x = 16,964,346,951.42/149,958.66
  6. Step 6: Final answer
    x = 113,126.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.