Home / 131,699.45-181,745.24-71,270.09

Finding the Fourth Proportional to 131,699.45, 181,745.24 and 71,270.09

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Solution

The fourth proportional to 131,699.45, 181,745.24 and 71,270.09 is: 98,352.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,699.45 : 181,745.24 = 71,270.09 : x
  2. Step 2: Convert to fraction form
    131,699.45/181,745.24 = 71,270.09/x
  3. Step 3: Cross multiply
    131,699.45x = 181,745.24 × 71,270.09
  4. Step 4: Simplify right side
    131,699.45x = 12,952,999,611.87
  5. Step 5: Solve for x
    x = 12,952,999,611.87/131,699.45
  6. Step 6: Final answer
    x = 98,352.72

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1.5x scale

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.