Home / 97,939.20-146,738.70-45,240.60

Finding the Fourth Proportional to 97,939.20, 146,738.70 and 45,240.60

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Solution

The fourth proportional to 97,939.20, 146,738.70 and 45,240.60 is: 67,782.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,939.20 : 146,738.70 = 45,240.60 : x
  2. Step 2: Convert to fraction form
    97,939.20/146,738.70 = 45,240.60/x
  3. Step 3: Cross multiply
    97,939.20x = 146,738.70 × 45,240.60
  4. Step 4: Simplify right side
    97,939.20x = 6,638,546,831.22
  5. Step 5: Solve for x
    x = 6,638,546,831.22/97,939.20
  6. Step 6: Final answer
    x = 67,782.33

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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.