Home / 128,460.74-192,576.29-100,226.57

Finding the Fourth Proportional to 128,460.74, 192,576.29 and 100,226.57

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Solution

The fourth proportional to 128,460.74, 192,576.29 and 100,226.57 is: 150,250.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,460.74 : 192,576.29 = 100,226.57 : x
  2. Step 2: Convert to fraction form
    128,460.74/192,576.29 = 100,226.57/x
  3. Step 3: Cross multiply
    128,460.74x = 192,576.29 × 100,226.57
  4. Step 4: Simplify right side
    128,460.74x = 19,301,259,546.01
  5. Step 5: Solve for x
    x = 19,301,259,546.01/128,460.74
  6. Step 6: Final answer
    x = 150,250.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.