Home / 209,916.18-289,687.34-114,422.87

Finding the Fourth Proportional to 209,916.18, 289,687.34 and 114,422.87

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Solution

The fourth proportional to 209,916.18, 289,687.34 and 114,422.87 is: 157,905.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,916.18 : 289,687.34 = 114,422.87 : x
  2. Step 2: Convert to fraction form
    209,916.18/289,687.34 = 114,422.87/x
  3. Step 3: Cross multiply
    209,916.18x = 289,687.34 × 114,422.87
  4. Step 4: Simplify right side
    209,916.18x = 33,146,857,855.74
  5. Step 5: Solve for x
    x = 33,146,857,855.74/209,916.18
  6. Step 6: Final answer
    x = 157,905.21

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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.