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Finding the Fourth Proportional to 122,994.10, 184,491.15 and 81,003.70

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Solution

The fourth proportional to 122,994.10, 184,491.15 and 81,003.70 is: 121,505.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,994.10 : 184,491.15 = 81,003.70 : x
  2. Step 2: Convert to fraction form
    122,994.10/184,491.15 = 81,003.70/x
  3. Step 3: Cross multiply
    122,994.10x = 184,491.15 × 81,003.70
  4. Step 4: Simplify right side
    122,994.10x = 14,944,465,767.26
  5. Step 5: Solve for x
    x = 14,944,465,767.26/122,994.10
  6. Step 6: Final answer
    x = 121,505.55

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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.