Home / 445,933.05-668,922.15-126,108

Finding the Fourth Proportional to 445,933.05, 668,922.15 and 126,108

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Solution

The fourth proportional to 445,933.05, 668,922.15 and 126,108 is: 189,168.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,933.05 : 668,922.15 = 126,108 : x
  2. Step 2: Convert to fraction form
    445,933.05/668,922.15 = 126,108/x
  3. Step 3: Cross multiply
    445,933.05x = 668,922.15 × 126,108
  4. Step 4: Simplify right side
    445,933.05x = 84,356,434,492.20
  5. Step 5: Solve for x
    x = 84,356,434,492.20/445,933.05
  6. Step 6: Final answer
    x = 189,168.38

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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.