Home / 138,160.33-207,240.49-49,408.45

Finding the Fourth Proportional to 138,160.33, 207,240.49 and 49,408.45

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Solution

The fourth proportional to 138,160.33, 207,240.49 and 49,408.45 is: 74,112.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,160.33 : 207,240.49 = 49,408.45 : x
  2. Step 2: Convert to fraction form
    138,160.33/207,240.49 = 49,408.45/x
  3. Step 3: Cross multiply
    138,160.33x = 207,240.49 × 49,408.45
  4. Step 4: Simplify right side
    138,160.33x = 10,239,431,388.14
  5. Step 5: Solve for x
    x = 10,239,431,388.14/138,160.33
  6. Step 6: Final answer
    x = 74,112.67

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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.