Home / 180,989.20-271,561.56-128,734.48

Finding the Fourth Proportional to 180,989.20, 271,561.56 and 128,734.48

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Solution

The fourth proportional to 180,989.20, 271,561.56 and 128,734.48 is: 193,157.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,989.20 : 271,561.56 = 128,734.48 : x
  2. Step 2: Convert to fraction form
    180,989.20/271,561.56 = 128,734.48/x
  3. Step 3: Cross multiply
    180,989.20x = 271,561.56 × 128,734.48
  4. Step 4: Simplify right side
    180,989.20x = 34,959,336,214.59
  5. Step 5: Solve for x
    x = 34,959,336,214.59/180,989.20
  6. Step 6: Final answer
    x = 193,157.03

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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.