Home / 189,975.78-262,137.06-109,406.70

Finding the Fourth Proportional to 189,975.78, 262,137.06 and 109,406.70

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Solution

The fourth proportional to 189,975.78, 262,137.06 and 109,406.70 is: 150,964.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,975.78 : 262,137.06 = 109,406.70 : x
  2. Step 2: Convert to fraction form
    189,975.78/262,137.06 = 109,406.70/x
  3. Step 3: Cross multiply
    189,975.78x = 262,137.06 × 109,406.70
  4. Step 4: Simplify right side
    189,975.78x = 28,679,550,682.30
  5. Step 5: Solve for x
    x = 28,679,550,682.30/189,975.78
  6. Step 6: Final answer
    x = 150,964.25

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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.