Home / 136,708.54-188,670.81-82,981.24

Finding the Fourth Proportional to 136,708.54, 188,670.81 and 82,981.24

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Solution

The fourth proportional to 136,708.54, 188,670.81 and 82,981.24 is: 114,522.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,708.54 : 188,670.81 = 82,981.24 : x
  2. Step 2: Convert to fraction form
    136,708.54/188,670.81 = 82,981.24/x
  3. Step 3: Cross multiply
    136,708.54x = 188,670.81 × 82,981.24
  4. Step 4: Simplify right side
    136,708.54x = 15,656,137,765.60
  5. Step 5: Solve for x
    x = 15,656,137,765.60/136,708.54
  6. Step 6: Final answer
    x = 114,522.02

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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.