Home / 192,639.10-265,883.43-117,211.90

Finding the Fourth Proportional to 192,639.10, 265,883.43 and 117,211.90

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Solution

The fourth proportional to 192,639.10, 265,883.43 and 117,211.90 is: 161,777.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,639.10 : 265,883.43 = 117,211.90 : x
  2. Step 2: Convert to fraction form
    192,639.10/265,883.43 = 117,211.90/x
  3. Step 3: Cross multiply
    192,639.10x = 265,883.43 × 117,211.90
  4. Step 4: Simplify right side
    192,639.10x = 31,164,702,008.82
  5. Step 5: Solve for x
    x = 31,164,702,008.82/192,639.10
  6. Step 6: Final answer
    x = 161,777.66

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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.