Home / 107,629.02-161,443.53-28,739.07

Finding the Fourth Proportional to 107,629.02, 161,443.53 and 28,739.07

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Solution

The fourth proportional to 107,629.02, 161,443.53 and 28,739.07 is: 43,108.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,629.02 : 161,443.53 = 28,739.07 : x
  2. Step 2: Convert to fraction form
    107,629.02/161,443.53 = 28,739.07/x
  3. Step 3: Cross multiply
    107,629.02x = 161,443.53 × 28,739.07
  4. Step 4: Simplify right side
    107,629.02x = 4,639,736,909.72
  5. Step 5: Solve for x
    x = 4,639,736,909.72/107,629.02
  6. Step 6: Final answer
    x = 43,108.61

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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.