Home / 131,404.44-181,416.90-86,161.35

Finding the Fourth Proportional to 131,404.44, 181,416.90 and 86,161.35

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Solution

The fourth proportional to 131,404.44, 181,416.90 and 86,161.35 is: 118,954.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,404.44 : 181,416.90 = 86,161.35 : x
  2. Step 2: Convert to fraction form
    131,404.44/181,416.90 = 86,161.35/x
  3. Step 3: Cross multiply
    131,404.44x = 181,416.90 × 86,161.35
  4. Step 4: Simplify right side
    131,404.44x = 15,631,125,365.70
  5. Step 5: Solve for x
    x = 15,631,125,365.70/131,404.44
  6. Step 6: Final answer
    x = 118,954.31

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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.