Home / 129,603.38-194,405.06-31,107.38

Finding the Fourth Proportional to 129,603.38, 194,405.06 and 31,107.38

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Solution

The fourth proportional to 129,603.38, 194,405.06 and 31,107.38 is: 46,661.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,603.38 : 194,405.06 = 31,107.38 : x
  2. Step 2: Convert to fraction form
    129,603.38/194,405.06 = 31,107.38/x
  3. Step 3: Cross multiply
    129,603.38x = 194,405.06 × 31,107.38
  4. Step 4: Simplify right side
    129,603.38x = 6,047,431,181.09
  5. Step 5: Solve for x
    x = 6,047,431,181.09/129,603.38
  6. Step 6: Final answer
    x = 46,661.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.