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Finding the Fourth Proportional to 107,600.80, 161,343.60 and 45,200.80

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Solution

The fourth proportional to 107,600.80, 161,343.60 and 45,200.80 is: 67,777.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,600.80 : 161,343.60 = 45,200.80 : x
  2. Step 2: Convert to fraction form
    107,600.80/161,343.60 = 45,200.80/x
  3. Step 3: Cross multiply
    107,600.80x = 161,343.60 × 45,200.80
  4. Step 4: Simplify right side
    107,600.80x = 7,292,859,794.88
  5. Step 5: Solve for x
    x = 7,292,859,794.88/107,600.80
  6. Step 6: Final answer
    x = 67,777.00

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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.