Home / 222,972.09-307,699.90-120,994.96

Finding the Fourth Proportional to 222,972.09, 307,699.90 and 120,994.96

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Solution

The fourth proportional to 222,972.09, 307,699.90 and 120,994.96 is: 166,972.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,972.09 : 307,699.90 = 120,994.96 : x
  2. Step 2: Convert to fraction form
    222,972.09/307,699.90 = 120,994.96/x
  3. Step 3: Cross multiply
    222,972.09x = 307,699.90 × 120,994.96
  4. Step 4: Simplify right side
    222,972.09x = 37,230,136,020.77
  5. Step 5: Solve for x
    x = 37,230,136,020.77/222,972.09
  6. Step 6: Final answer
    x = 166,972.18

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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.