Home / 154,436.35-213,528.82-135,261.14

Finding the Fourth Proportional to 154,436.35, 213,528.82 and 135,261.14

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Solution

The fourth proportional to 154,436.35, 213,528.82 and 135,261.14 is: 187,016.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,436.35 : 213,528.82 = 135,261.14 : x
  2. Step 2: Convert to fraction form
    154,436.35/213,528.82 = 135,261.14/x
  3. Step 3: Cross multiply
    154,436.35x = 213,528.82 × 135,261.14
  4. Step 4: Simplify right side
    154,436.35x = 28,882,151,616.05
  5. Step 5: Solve for x
    x = 28,882,151,616.05/154,436.35
  6. Step 6: Final answer
    x = 187,016.54

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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.