Home / 225,771.41-311,552.54-128,956.25

Finding the Fourth Proportional to 225,771.41, 311,552.54 and 128,956.25

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Solution

The fourth proportional to 225,771.41, 311,552.54 and 128,956.25 is: 177,952.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,771.41 : 311,552.54 = 128,956.25 : x
  2. Step 2: Convert to fraction form
    225,771.41/311,552.54 = 128,956.25/x
  3. Step 3: Cross multiply
    225,771.41x = 311,552.54 × 128,956.25
  4. Step 4: Simplify right side
    225,771.41x = 40,176,646,001.00
  5. Step 5: Solve for x
    x = 40,176,646,001.00/225,771.41
  6. Step 6: Final answer
    x = 177,952.77

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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.