Home / 139,368.18-192,329.09-75,706

Finding the Fourth Proportional to 139,368.18, 192,329.09 and 75,706

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Solution

The fourth proportional to 139,368.18, 192,329.09 and 75,706 is: 104,474.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,368.18 : 192,329.09 = 75,706 : x
  2. Step 2: Convert to fraction form
    139,368.18/192,329.09 = 75,706/x
  3. Step 3: Cross multiply
    139,368.18x = 192,329.09 × 75,706
  4. Step 4: Simplify right side
    139,368.18x = 14,560,466,087.54
  5. Step 5: Solve for x
    x = 14,560,466,087.54/139,368.18
  6. Step 6: Final answer
    x = 104,474.82

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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.