Home / 201,513.08-278,057.26-120,923

Finding the Fourth Proportional to 201,513.08, 278,057.26 and 120,923

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Solution

The fourth proportional to 201,513.08, 278,057.26 and 120,923 is: 166,855.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,513.08 : 278,057.26 = 120,923 : x
  2. Step 2: Convert to fraction form
    201,513.08/278,057.26 = 120,923/x
  3. Step 3: Cross multiply
    201,513.08x = 278,057.26 × 120,923
  4. Step 4: Simplify right side
    201,513.08x = 33,623,518,050.98
  5. Step 5: Solve for x
    x = 33,623,518,050.98/201,513.08
  6. Step 6: Final answer
    x = 166,855.26

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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.