Home / 214,889.20-322,220.40-72,685.60

Finding the Fourth Proportional to 214,889.20, 322,220.40 and 72,685.60

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Solution

The fourth proportional to 214,889.20, 322,220.40 and 72,685.60 is: 108,990.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,889.20 : 322,220.40 = 72,685.60 : x
  2. Step 2: Convert to fraction form
    214,889.20/322,220.40 = 72,685.60/x
  3. Step 3: Cross multiply
    214,889.20x = 322,220.40 × 72,685.60
  4. Step 4: Simplify right side
    214,889.20x = 23,420,783,106.24
  5. Step 5: Solve for x
    x = 23,420,783,106.24/214,889.20
  6. Step 6: Final answer
    x = 108,990.04

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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.