Home / 149,044.64-205,682.46-81,062.42

Finding the Fourth Proportional to 149,044.64, 205,682.46 and 81,062.42

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Solution

The fourth proportional to 149,044.64, 205,682.46 and 81,062.42 is: 111,866.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,044.64 : 205,682.46 = 81,062.42 : x
  2. Step 2: Convert to fraction form
    149,044.64/205,682.46 = 81,062.42/x
  3. Step 3: Cross multiply
    149,044.64x = 205,682.46 × 81,062.42
  4. Step 4: Simplify right side
    149,044.64x = 16,673,117,959.15
  5. Step 5: Solve for x
    x = 16,673,117,959.15/149,044.64
  6. Step 6: Final answer
    x = 111,866.61

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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.