Home / 136,436.84-188,232.90-82,683.08

Finding the Fourth Proportional to 136,436.84, 188,232.90 and 82,683.08

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Solution

The fourth proportional to 136,436.84, 188,232.90 and 82,683.08 is: 114,072.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,436.84 : 188,232.90 = 82,683.08 : x
  2. Step 2: Convert to fraction form
    136,436.84/188,232.90 = 82,683.08/x
  3. Step 3: Cross multiply
    136,436.84x = 188,232.90 × 82,683.08
  4. Step 4: Simplify right side
    136,436.84x = 15,563,675,929.33
  5. Step 5: Solve for x
    x = 15,563,675,929.33/136,436.84
  6. Step 6: Final answer
    x = 114,072.39

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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.