Home / 139,446.81-192,436.52-75,784.62

Finding the Fourth Proportional to 139,446.81, 192,436.52 and 75,784.62

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Solution

The fourth proportional to 139,446.81, 192,436.52 and 75,784.62 is: 104,582.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,446.81 : 192,436.52 = 75,784.62 : x
  2. Step 2: Convert to fraction form
    139,446.81/192,436.52 = 75,784.62/x
  3. Step 3: Cross multiply
    139,446.81x = 192,436.52 × 75,784.62
  4. Step 4: Simplify right side
    139,446.81x = 14,583,728,163.40
  5. Step 5: Solve for x
    x = 14,583,728,163.40/139,446.81
  6. Step 6: Final answer
    x = 104,582.73

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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.