Home / 121,738.70-182,608.05-103,076.30

Finding the Fourth Proportional to 121,738.70, 182,608.05 and 103,076.30

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Solution

The fourth proportional to 121,738.70, 182,608.05 and 103,076.30 is: 154,614.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,738.70 : 182,608.05 = 103,076.30 : x
  2. Step 2: Convert to fraction form
    121,738.70/182,608.05 = 103,076.30/x
  3. Step 3: Cross multiply
    121,738.70x = 182,608.05 × 103,076.30
  4. Step 4: Simplify right side
    121,738.70x = 18,822,562,144.22
  5. Step 5: Solve for x
    x = 18,822,562,144.22/121,738.70
  6. Step 6: Final answer
    x = 154,614.45

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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.