Home / 139,231.46-192,139.61-75,569.27

Finding the Fourth Proportional to 139,231.46, 192,139.61 and 75,569.27

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Solution

The fourth proportional to 139,231.46, 192,139.61 and 75,569.27 is: 104,285.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,231.46 : 192,139.61 = 75,569.27 : x
  2. Step 2: Convert to fraction form
    139,231.46/192,139.61 = 75,569.27/x
  3. Step 3: Cross multiply
    139,231.46x = 192,139.61 × 75,569.27
  4. Step 4: Simplify right side
    139,231.46x = 14,519,848,727.24
  5. Step 5: Solve for x
    x = 14,519,848,727.24/139,231.46
  6. Step 6: Final answer
    x = 104,285.69

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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.