Home / 201,918.24-278,622.96-115,872.48

Finding the Fourth Proportional to 201,918.24, 278,622.96 and 115,872.48

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Solution

The fourth proportional to 201,918.24, 278,622.96 and 115,872.48 is: 159,890.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,918.24 : 278,622.96 = 115,872.48 : x
  2. Step 2: Convert to fraction form
    201,918.24/278,622.96 = 115,872.48/x
  3. Step 3: Cross multiply
    201,918.24x = 278,622.96 × 115,872.48
  4. Step 4: Simplify right side
    201,918.24x = 32,284,733,360.14
  5. Step 5: Solve for x
    x = 32,284,733,360.14/201,918.24
  6. Step 6: Final answer
    x = 159,890.13

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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.