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Finding the Fourth Proportional to 158,059.96, 218,202.06 and 122,168.86

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Solution

The fourth proportional to 158,059.96, 218,202.06 and 122,168.86 is: 168,654.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,059.96 : 218,202.06 = 122,168.86 : x
  2. Step 2: Convert to fraction form
    158,059.96/218,202.06 = 122,168.86/x
  3. Step 3: Cross multiply
    158,059.96x = 218,202.06 × 122,168.86
  4. Step 4: Simplify right side
    158,059.96x = 26,657,496,919.85
  5. Step 5: Solve for x
    x = 26,657,496,919.85/158,059.96
  6. Step 6: Final answer
    x = 168,654.33

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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.