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Finding the Fourth Proportional to 146,573.20, 220,005.60 and 71,777.80

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Solution

The fourth proportional to 146,573.20, 220,005.60 and 71,777.80 is: 107,738.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,573.20 : 220,005.60 = 71,777.80 : x
  2. Step 2: Convert to fraction form
    146,573.20/220,005.60 = 71,777.80/x
  3. Step 3: Cross multiply
    146,573.20x = 220,005.60 × 71,777.80
  4. Step 4: Simplify right side
    146,573.20x = 15,791,517,955.68
  5. Step 5: Solve for x
    x = 15,791,517,955.68/146,573.20
  6. Step 6: Final answer
    x = 107,738.10

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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.