Home / 202,195.09-279,027.29-111,551.78

Finding the Fourth Proportional to 202,195.09, 279,027.29 and 111,551.78

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Solution

The fourth proportional to 202,195.09, 279,027.29 and 111,551.78 is: 153,940.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,195.09 : 279,027.29 = 111,551.78 : x
  2. Step 2: Convert to fraction form
    202,195.09/279,027.29 = 111,551.78/x
  3. Step 3: Cross multiply
    202,195.09x = 279,027.29 × 111,551.78
  4. Step 4: Simplify right side
    202,195.09x = 31,125,992,001.39
  5. Step 5: Solve for x
    x = 31,125,992,001.39/202,195.09
  6. Step 6: Final answer
    x = 153,940.40

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1.5x scale

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.