Home / 139,346.55-192,299.25-75,684.36

Finding the Fourth Proportional to 139,346.55, 192,299.25 and 75,684.36

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Solution

The fourth proportional to 139,346.55, 192,299.25 and 75,684.36 is: 104,444.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,346.55 : 192,299.25 = 75,684.36 : x
  2. Step 2: Convert to fraction form
    139,346.55/192,299.25 = 75,684.36/x
  3. Step 3: Cross multiply
    139,346.55x = 192,299.25 × 75,684.36
  4. Step 4: Simplify right side
    139,346.55x = 14,554,045,664.73
  5. Step 5: Solve for x
    x = 14,554,045,664.73/139,346.55
  6. Step 6: Final answer
    x = 104,444.97

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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.