Home / 215,361.81-323,190.54-75,120.45

Finding the Fourth Proportional to 215,361.81, 323,190.54 and 75,120.45

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Solution

The fourth proportional to 215,361.81, 323,190.54 and 75,120.45 is: 112,732.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,361.81 : 323,190.54 = 75,120.45 : x
  2. Step 2: Convert to fraction form
    215,361.81/323,190.54 = 75,120.45/x
  3. Step 3: Cross multiply
    215,361.81x = 323,190.54 × 75,120.45
  4. Step 4: Simplify right side
    215,361.81x = 24,278,218,800.54
  5. Step 5: Solve for x
    x = 24,278,218,800.54/215,361.81
  6. Step 6: Final answer
    x = 112,732.24

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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.