Home / 131,420.94-197,080.92-103,396.02

Finding the Fourth Proportional to 131,420.94, 197,080.92 and 103,396.02

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Solution

The fourth proportional to 131,420.94, 197,080.92 and 103,396.02 is: 155,054.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,420.94 : 197,080.92 = 103,396.02 : x
  2. Step 2: Convert to fraction form
    131,420.94/197,080.92 = 103,396.02/x
  3. Step 3: Cross multiply
    131,420.94x = 197,080.92 × 103,396.02
  4. Step 4: Simplify right side
    131,420.94x = 20,377,382,745.94
  5. Step 5: Solve for x
    x = 20,377,382,745.94/131,420.94
  6. Step 6: Final answer
    x = 155,054.31

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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.