Home / 107,840.68-161,782.89-37,769.20

Finding the Fourth Proportional to 107,840.68, 161,782.89 and 37,769.20

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Solution

The fourth proportional to 107,840.68, 161,782.89 and 37,769.20 is: 56,661.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,840.68 : 161,782.89 = 37,769.20 : x
  2. Step 2: Convert to fraction form
    107,840.68/161,782.89 = 37,769.20/x
  3. Step 3: Cross multiply
    107,840.68x = 161,782.89 × 37,769.20
  4. Step 4: Simplify right side
    107,840.68x = 6,110,410,328.99
  5. Step 5: Solve for x
    x = 6,110,410,328.99/107,840.68
  6. Step 6: Final answer
    x = 56,661.46

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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.