Home / 149,358.06-206,112.97-81,374.82

Finding the Fourth Proportional to 149,358.06, 206,112.97 and 81,374.82

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Solution

The fourth proportional to 149,358.06, 206,112.97 and 81,374.82 is: 112,296.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,358.06 : 206,112.97 = 81,374.82 : x
  2. Step 2: Convert to fraction form
    149,358.06/206,112.97 = 81,374.82/x
  3. Step 3: Cross multiply
    149,358.06x = 206,112.97 × 81,374.82
  4. Step 4: Simplify right side
    149,358.06x = 16,772,405,833.42
  5. Step 5: Solve for x
    x = 16,772,405,833.42/149,358.06
  6. Step 6: Final answer
    x = 112,296.63

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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.