Home / 149,922.54-206,916.93-86,247.90

Finding the Fourth Proportional to 149,922.54, 206,916.93 and 86,247.90

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Solution

The fourth proportional to 149,922.54, 206,916.93 and 86,247.90 is: 119,035.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,922.54 : 206,916.93 = 86,247.90 : x
  2. Step 2: Convert to fraction form
    149,922.54/206,916.93 = 86,247.90/x
  3. Step 3: Cross multiply
    149,922.54x = 206,916.93 × 86,247.90
  4. Step 4: Simplify right side
    149,922.54x = 17,846,150,686.95
  5. Step 5: Solve for x
    x = 17,846,150,686.95/149,922.54
  6. Step 6: Final answer
    x = 119,035.81

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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.