Home / 190,905.40-263,331.66-122,899.96

Finding the Fourth Proportional to 190,905.40, 263,331.66 and 122,899.96

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Solution

The fourth proportional to 190,905.40, 263,331.66 and 122,899.96 is: 169,526.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,905.40 : 263,331.66 = 122,899.96 : x
  2. Step 2: Convert to fraction form
    190,905.40/263,331.66 = 122,899.96/x
  3. Step 3: Cross multiply
    190,905.40x = 263,331.66 × 122,899.96
  4. Step 4: Simplify right side
    190,905.40x = 32,363,450,480.73
  5. Step 5: Solve for x
    x = 32,363,450,480.73/190,905.40
  6. Step 6: Final answer
    x = 169,526.11

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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.