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Finding the Fourth Proportional to 161,693.37, 223,143.75 and 90,073.44

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Solution

The fourth proportional to 161,693.37, 223,143.75 and 90,073.44 is: 124,305.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,693.37 : 223,143.75 = 90,073.44 : x
  2. Step 2: Convert to fraction form
    161,693.37/223,143.75 = 90,073.44/x
  3. Step 3: Cross multiply
    161,693.37x = 223,143.75 × 90,073.44
  4. Step 4: Simplify right side
    161,693.37x = 20,099,325,177
  5. Step 5: Solve for x
    x = 20,099,325,177/161,693.37
  6. Step 6: Final answer
    x = 124,305.19

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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.