Home / 107,605.45-161,406.84-48,399.31

Finding the Fourth Proportional to 107,605.45, 161,406.84 and 48,399.31

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Solution

The fourth proportional to 107,605.45, 161,406.84 and 48,399.31 is: 72,598.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,605.45 : 161,406.84 = 48,399.31 : x
  2. Step 2: Convert to fraction form
    107,605.45/161,406.84 = 48,399.31/x
  3. Step 3: Cross multiply
    107,605.45x = 161,406.84 × 48,399.31
  4. Step 4: Simplify right side
    107,605.45x = 7,811,979,685.28
  5. Step 5: Solve for x
    x = 7,811,979,685.28/107,605.45
  6. Step 6: Final answer
    x = 72,598.36

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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.