Home / 414,135.72-621,111.24-161,423.01

Finding the Fourth Proportional to 414,135.72, 621,111.24 and 161,423.01

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Solution

The fourth proportional to 414,135.72, 621,111.24 and 161,423.01 is: 242,098.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,135.72 : 621,111.24 = 161,423.01 : x
  2. Step 2: Convert to fraction form
    414,135.72/621,111.24 = 161,423.01/x
  3. Step 3: Cross multiply
    414,135.72x = 621,111.24 × 161,423.01
  4. Step 4: Simplify right side
    414,135.72x = 100,261,645,905.63
  5. Step 5: Solve for x
    x = 100,261,645,905.63/414,135.72
  6. Step 6: Final answer
    x = 242,098.52

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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.