Home / 99,915.31-149,946.90-47,324.95

Finding the Fourth Proportional to 99,915.31, 149,946.90 and 47,324.95

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Solution

The fourth proportional to 99,915.31, 149,946.90 and 47,324.95 is: 71,022.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,915.31 : 149,946.90 = 47,324.95 : x
  2. Step 2: Convert to fraction form
    99,915.31/149,946.90 = 47,324.95/x
  3. Step 3: Cross multiply
    99,915.31x = 149,946.90 × 47,324.95
  4. Step 4: Simplify right side
    99,915.31x = 7,096,229,545.16
  5. Step 5: Solve for x
    x = 7,096,229,545.16/99,915.31
  6. Step 6: Final answer
    x = 71,022.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.