Home / 131,407.26-181,175.94-86,013.24

Finding the Fourth Proportional to 131,407.26, 181,175.94 and 86,013.24

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Solution

The fourth proportional to 131,407.26, 181,175.94 and 86,013.24 is: 118,589.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,407.26 : 181,175.94 = 86,013.24 : x
  2. Step 2: Convert to fraction form
    131,407.26/181,175.94 = 86,013.24/x
  3. Step 3: Cross multiply
    131,407.26x = 181,175.94 × 86,013.24
  4. Step 4: Simplify right side
    131,407.26x = 15,583,529,609.45
  5. Step 5: Solve for x
    x = 15,583,529,609.45/131,407.26
  6. Step 6: Final answer
    x = 118,589.56

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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.