Home / 225,975.56-311,845.40-124,002.72

Finding the Fourth Proportional to 225,975.56, 311,845.40 and 124,002.72

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Solution

The fourth proportional to 225,975.56, 311,845.40 and 124,002.72 is: 171,123.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,975.56 : 311,845.40 = 124,002.72 : x
  2. Step 2: Convert to fraction form
    225,975.56/311,845.40 = 124,002.72/x
  3. Step 3: Cross multiply
    225,975.56x = 311,845.40 × 124,002.72
  4. Step 4: Simplify right side
    225,975.56x = 38,669,677,819.49
  5. Step 5: Solve for x
    x = 38,669,677,819.49/225,975.56
  6. Step 6: Final answer
    x = 171,123.28

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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.