Home / 139,766.49-209,651.55-39,929.94

Finding the Fourth Proportional to 139,766.49, 209,651.55 and 39,929.94

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Solution

The fourth proportional to 139,766.49, 209,651.55 and 39,929.94 is: 59,895.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,766.49 : 209,651.55 = 39,929.94 : x
  2. Step 2: Convert to fraction form
    139,766.49/209,651.55 = 39,929.94/x
  3. Step 3: Cross multiply
    139,766.49x = 209,651.55 × 39,929.94
  4. Step 4: Simplify right side
    139,766.49x = 8,371,373,812.41
  5. Step 5: Solve for x
    x = 8,371,373,812.41/139,766.49
  6. Step 6: Final answer
    x = 59,895.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.