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Finding the Fourth Proportional to 180,333.76, 270,525.26 and 75,128.12

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Solution

The fourth proportional to 180,333.76, 270,525.26 and 75,128.12 is: 112,702.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,333.76 : 270,525.26 = 75,128.12 : x
  2. Step 2: Convert to fraction form
    180,333.76/270,525.26 = 75,128.12/x
  3. Step 3: Cross multiply
    180,333.76x = 270,525.26 × 75,128.12
  4. Step 4: Simplify right side
    180,333.76x = 20,324,054,196.31
  5. Step 5: Solve for x
    x = 20,324,054,196.31/180,333.76
  6. Step 6: Final answer
    x = 112,702.44

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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.