Home / 209,869.13-289,583.94-117,976.17

Finding the Fourth Proportional to 209,869.13, 289,583.94 and 117,976.17

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Solution

The fourth proportional to 209,869.13, 289,583.94 and 117,976.17 is: 162,787.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,869.13 : 289,583.94 = 117,976.17 : x
  2. Step 2: Convert to fraction form
    209,869.13/289,583.94 = 117,976.17/x
  3. Step 3: Cross multiply
    209,869.13x = 289,583.94 × 117,976.17
  4. Step 4: Simplify right side
    209,869.13x = 34,164,003,544.83
  5. Step 5: Solve for x
    x = 34,164,003,544.83/209,869.13
  6. Step 6: Final answer
    x = 162,787.18

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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.