Home / 146,749.70-220,223.21-51,979.56

Finding the Fourth Proportional to 146,749.70, 220,223.21 and 51,979.56

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Solution

The fourth proportional to 146,749.70, 220,223.21 and 51,979.56 is: 78,004.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,749.70 : 220,223.21 = 51,979.56 : x
  2. Step 2: Convert to fraction form
    146,749.70/220,223.21 = 51,979.56/x
  3. Step 3: Cross multiply
    146,749.70x = 220,223.21 × 51,979.56
  4. Step 4: Simplify right side
    146,749.70x = 11,447,105,297.69
  5. Step 5: Solve for x
    x = 11,447,105,297.69/146,749.70
  6. Step 6: Final answer
    x = 78,004.29

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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.