Home / 149,898.88-206,862.24-81,915.52

Finding the Fourth Proportional to 149,898.88, 206,862.24 and 81,915.52

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Solution

The fourth proportional to 149,898.88, 206,862.24 and 81,915.52 is: 113,044.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,898.88 : 206,862.24 = 81,915.52 : x
  2. Step 2: Convert to fraction form
    149,898.88/206,862.24 = 81,915.52/x
  3. Step 3: Cross multiply
    149,898.88x = 206,862.24 × 81,915.52
  4. Step 4: Simplify right side
    149,898.88x = 16,945,227,957.96
  5. Step 5: Solve for x
    x = 16,945,227,957.96/149,898.88
  6. Step 6: Final answer
    x = 113,044.39

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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.