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Finding the Fourth Proportional to 97,480.80, 146,221.20 and 68,940.45

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Solution

The fourth proportional to 97,480.80, 146,221.20 and 68,940.45 is: 103,410.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,480.80 : 146,221.20 = 68,940.45 : x
  2. Step 2: Convert to fraction form
    97,480.80/146,221.20 = 68,940.45/x
  3. Step 3: Cross multiply
    97,480.80x = 146,221.20 × 68,940.45
  4. Step 4: Simplify right side
    97,480.80x = 10,080,555,327.54
  5. Step 5: Solve for x
    x = 10,080,555,327.54/97,480.80
  6. Step 6: Final answer
    x = 103,410.68

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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.