Home / 131,653.75-181,681.92-71,224.44

Finding the Fourth Proportional to 131,653.75, 181,681.92 and 71,224.44

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Solution

The fourth proportional to 131,653.75, 181,681.92 and 71,224.44 is: 98,289.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,653.75 : 181,681.92 = 71,224.44 : x
  2. Step 2: Convert to fraction form
    131,653.75/181,681.92 = 71,224.44/x
  3. Step 3: Cross multiply
    131,653.75x = 181,681.92 × 71,224.44
  4. Step 4: Simplify right side
    131,653.75x = 12,940,191,745.59
  5. Step 5: Solve for x
    x = 12,940,191,745.59/131,653.75
  6. Step 6: Final answer
    x = 98,289.58

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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.