Home / 201,916.76-278,628.50-115,902.04

Finding the Fourth Proportional to 201,916.76, 278,628.50 and 115,902.04

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Solution

The fourth proportional to 201,916.76, 278,628.50 and 115,902.04 is: 159,935.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,916.76 : 278,628.50 = 115,902.04 : x
  2. Step 2: Convert to fraction form
    201,916.76/278,628.50 = 115,902.04/x
  3. Step 3: Cross multiply
    201,916.76x = 278,628.50 × 115,902.04
  4. Step 4: Simplify right side
    201,916.76x = 32,293,611,552.14
  5. Step 5: Solve for x
    x = 32,293,611,552.14/201,916.76
  6. Step 6: Final answer
    x = 159,935.27

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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.