Home / 445,932.95-668,921.90-126,107.81

Finding the Fourth Proportional to 445,932.95, 668,921.90 and 126,107.81

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Solution

The fourth proportional to 445,932.95, 668,921.90 and 126,107.81 is: 189,168.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,932.95 : 668,921.90 = 126,107.81 : x
  2. Step 2: Convert to fraction form
    445,932.95/668,921.90 = 126,107.81/x
  3. Step 3: Cross multiply
    445,932.95x = 668,921.90 × 126,107.81
  4. Step 4: Simplify right side
    445,932.95x = 84,356,274,403.35
  5. Step 5: Solve for x
    x = 84,356,274,403.35/445,932.95
  6. Step 6: Final answer
    x = 189,168.07

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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.