Home / 117,604.12-162,183-90,704.04

Finding the Fourth Proportional to 117,604.12, 162,183 and 90,704.04

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Solution

The fourth proportional to 117,604.12, 162,183 and 90,704.04 is: 125,086.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,604.12 : 162,183 = 90,704.04 : x
  2. Step 2: Convert to fraction form
    117,604.12/162,183 = 90,704.04/x
  3. Step 3: Cross multiply
    117,604.12x = 162,183 × 90,704.04
  4. Step 4: Simplify right side
    117,604.12x = 14,710,653,319.32
  5. Step 5: Solve for x
    x = 14,710,653,319.32/117,604.12
  6. Step 6: Final answer
    x = 125,086.21

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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.