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Finding the Fourth Proportional to 123,081.70, 184,622.55 and 69,937.60

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Solution

The fourth proportional to 123,081.70, 184,622.55 and 69,937.60 is: 104,906.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,081.70 : 184,622.55 = 69,937.60 : x
  2. Step 2: Convert to fraction form
    123,081.70/184,622.55 = 69,937.60/x
  3. Step 3: Cross multiply
    123,081.70x = 184,622.55 × 69,937.60
  4. Step 4: Simplify right side
    123,081.70x = 12,912,058,052.88
  5. Step 5: Solve for x
    x = 12,912,058,052.88/123,081.70
  6. Step 6: Final answer
    x = 104,906.40

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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.