Home / 135,270.33-186,666.21-74,015.19

Finding the Fourth Proportional to 135,270.33, 186,666.21 and 74,015.19

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Solution

The fourth proportional to 135,270.33, 186,666.21 and 74,015.19 is: 102,137.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,270.33 : 186,666.21 = 74,015.19 : x
  2. Step 2: Convert to fraction form
    135,270.33/186,666.21 = 74,015.19/x
  3. Step 3: Cross multiply
    135,270.33x = 186,666.21 × 74,015.19
  4. Step 4: Simplify right side
    135,270.33x = 13,816,134,999.73
  5. Step 5: Solve for x
    x = 13,816,134,999.73/135,270.33
  6. Step 6: Final answer
    x = 102,137.22

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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.