Home / 220,974.15-304,944.35-120,372.15

Finding the Fourth Proportional to 220,974.15, 304,944.35 and 120,372.15

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Solution

The fourth proportional to 220,974.15, 304,944.35 and 120,372.15 is: 166,113.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,974.15 : 304,944.35 = 120,372.15 : x
  2. Step 2: Convert to fraction form
    220,974.15/304,944.35 = 120,372.15/x
  3. Step 3: Cross multiply
    220,974.15x = 304,944.35 × 120,372.15
  4. Step 4: Simplify right side
    220,974.15x = 36,706,807,039.85
  5. Step 5: Solve for x
    x = 36,706,807,039.85/220,974.15
  6. Step 6: Final answer
    x = 166,113.58

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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.