Home / 149,879.67-206,827.52-81,895.56

Finding the Fourth Proportional to 149,879.67, 206,827.52 and 81,895.56

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Solution

The fourth proportional to 149,879.67, 206,827.52 and 81,895.56 is: 113,012.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,879.67 : 206,827.52 = 81,895.56 : x
  2. Step 2: Convert to fraction form
    149,879.67/206,827.52 = 81,895.56/x
  3. Step 3: Cross multiply
    149,879.67x = 206,827.52 × 81,895.56
  4. Step 4: Simplify right side
    149,879.67x = 16,938,255,573.81
  5. Step 5: Solve for x
    x = 16,938,255,573.81/149,879.67
  6. Step 6: Final answer
    x = 113,012.36

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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.