Home / 139,579.07-192,617.32-75,916.87

Finding the Fourth Proportional to 139,579.07, 192,617.32 and 75,916.87

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Solution

The fourth proportional to 139,579.07, 192,617.32 and 75,916.87 is: 104,764.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,579.07 : 192,617.32 = 75,916.87 : x
  2. Step 2: Convert to fraction form
    139,579.07/192,617.32 = 75,916.87/x
  3. Step 3: Cross multiply
    139,579.07x = 192,617.32 × 75,916.87
  4. Step 4: Simplify right side
    139,579.07x = 14,622,904,042.19
  5. Step 5: Solve for x
    x = 14,622,904,042.19/139,579.07
  6. Step 6: Final answer
    x = 104,764.30

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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.