Home / 202,556.05-279,439.53-121,936.86

Finding the Fourth Proportional to 202,556.05, 279,439.53 and 121,936.86

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Solution

The fourth proportional to 202,556.05, 279,439.53 and 121,936.86 is: 168,220.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,556.05 : 279,439.53 = 121,936.86 : x
  2. Step 2: Convert to fraction form
    202,556.05/279,439.53 = 121,936.86/x
  3. Step 3: Cross multiply
    202,556.05x = 279,439.53 × 121,936.86
  4. Step 4: Simplify right side
    202,556.05x = 34,073,979,895.97
  5. Step 5: Solve for x
    x = 34,073,979,895.97/202,556.05
  6. Step 6: Final answer
    x = 168,220.00

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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.