Home / 149,111.36-205,773.60-82,042.88

Finding the Fourth Proportional to 149,111.36, 205,773.60 and 82,042.88

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Solution

The fourth proportional to 149,111.36, 205,773.60 and 82,042.88 is: 113,219.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,111.36 : 205,773.60 = 82,042.88 : x
  2. Step 2: Convert to fraction form
    149,111.36/205,773.60 = 82,042.88/x
  3. Step 3: Cross multiply
    149,111.36x = 205,773.60 × 82,042.88
  4. Step 4: Simplify right side
    149,111.36x = 16,882,258,771.97
  5. Step 5: Solve for x
    x = 16,882,258,771.97/149,111.36
  6. Step 6: Final answer
    x = 113,219.13

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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.