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Finding the Fourth Proportional to 162,261.96, 223,905.44 and 90,640.44

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Solution

The fourth proportional to 162,261.96, 223,905.44 and 90,640.44 is: 125,074.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,261.96 : 223,905.44 = 90,640.44 : x
  2. Step 2: Convert to fraction form
    162,261.96/223,905.44 = 90,640.44/x
  3. Step 3: Cross multiply
    162,261.96x = 223,905.44 × 90,640.44
  4. Step 4: Simplify right side
    162,261.96x = 20,294,887,599.99
  5. Step 5: Solve for x
    x = 20,294,887,599.99/162,261.96
  6. Step 6: Final answer
    x = 125,074.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.