Home / 135,072.90-202,433.97-55,017.51

Finding the Fourth Proportional to 135,072.90, 202,433.97 and 55,017.51

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Solution

The fourth proportional to 135,072.90, 202,433.97 and 55,017.51 is: 82,454.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,072.90 : 202,433.97 = 55,017.51 : x
  2. Step 2: Convert to fraction form
    135,072.90/202,433.97 = 55,017.51/x
  3. Step 3: Cross multiply
    135,072.90x = 202,433.97 × 55,017.51
  4. Step 4: Simplify right side
    135,072.90x = 11,137,412,968.81
  5. Step 5: Solve for x
    x = 11,137,412,968.81/135,072.90
  6. Step 6: Final answer
    x = 82,454.83

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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.