Home / 128,787.96-192,916.02-95,545.56

Finding the Fourth Proportional to 128,787.96, 192,916.02 and 95,545.56

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Solution

The fourth proportional to 128,787.96, 192,916.02 and 95,545.56 is: 143,121.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,787.96 : 192,916.02 = 95,545.56 : x
  2. Step 2: Convert to fraction form
    128,787.96/192,916.02 = 95,545.56/x
  3. Step 3: Cross multiply
    128,787.96x = 192,916.02 × 95,545.56
  4. Step 4: Simplify right side
    128,787.96x = 18,432,269,163.87
  5. Step 5: Solve for x
    x = 18,432,269,163.87/128,787.96
  6. Step 6: Final answer
    x = 143,121.06

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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.