Home / 139,269.49-192,350.18-93,869.21

Finding the Fourth Proportional to 139,269.49, 192,350.18 and 93,869.21

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Solution

The fourth proportional to 139,269.49, 192,350.18 and 93,869.21 is: 129,646.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,269.49 : 192,350.18 = 93,869.21 : x
  2. Step 2: Convert to fraction form
    139,269.49/192,350.18 = 93,869.21/x
  3. Step 3: Cross multiply
    139,269.49x = 192,350.18 × 93,869.21
  4. Step 4: Simplify right side
    139,269.49x = 18,055,759,439.96
  5. Step 5: Solve for x
    x = 18,055,759,439.96/139,269.49
  6. Step 6: Final answer
    x = 129,646.19

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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.