Home / 149,601.76-206,429.95-85,939.54

Finding the Fourth Proportional to 149,601.76, 206,429.95 and 85,939.54

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Solution

The fourth proportional to 149,601.76, 206,429.95 and 85,939.54 is: 118,584.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,601.76 : 206,429.95 = 85,939.54 : x
  2. Step 2: Convert to fraction form
    149,601.76/206,429.95 = 85,939.54/x
  3. Step 3: Cross multiply
    149,601.76x = 206,429.95 × 85,939.54
  4. Step 4: Simplify right side
    149,601.76x = 17,740,494,945.22
  5. Step 5: Solve for x
    x = 17,740,494,945.22/149,601.76
  6. Step 6: Final answer
    x = 118,584.80

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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.