Home / 136,621.98-188,506.14-82,905.72

Finding the Fourth Proportional to 136,621.98, 188,506.14 and 82,905.72

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Solution

The fourth proportional to 136,621.98, 188,506.14 and 82,905.72 is: 114,390.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,621.98 : 188,506.14 = 82,905.72 : x
  2. Step 2: Convert to fraction form
    136,621.98/188,506.14 = 82,905.72/x
  3. Step 3: Cross multiply
    136,621.98x = 188,506.14 × 82,905.72
  4. Step 4: Simplify right side
    136,621.98x = 15,628,237,261.12
  5. Step 5: Solve for x
    x = 15,628,237,261.12/136,621.98
  6. Step 6: Final answer
    x = 114,390.36

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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.