Home / 128,916.48-192,857.82-106,773

Finding the Fourth Proportional to 128,916.48, 192,857.82 and 106,773

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Solution

The fourth proportional to 128,916.48, 192,857.82 and 106,773 is: 159,731.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,916.48 : 192,857.82 = 106,773 : x
  2. Step 2: Convert to fraction form
    128,916.48/192,857.82 = 106,773/x
  3. Step 3: Cross multiply
    128,916.48x = 192,857.82 × 106,773
  4. Step 4: Simplify right side
    128,916.48x = 20,592,008,014.86
  5. Step 5: Solve for x
    x = 20,592,008,014.86/128,916.48
  6. Step 6: Final answer
    x = 159,731.39

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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.