Home / 107,438.59-161,102.20-56,865.03

Finding the Fourth Proportional to 107,438.59, 161,102.20 and 56,865.03

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Solution

The fourth proportional to 107,438.59, 161,102.20 and 56,865.03 is: 85,268.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,438.59 : 161,102.20 = 56,865.03 : x
  2. Step 2: Convert to fraction form
    107,438.59/161,102.20 = 56,865.03/x
  3. Step 3: Cross multiply
    107,438.59x = 161,102.20 × 56,865.03
  4. Step 4: Simplify right side
    107,438.59x = 9,161,081,436.07
  5. Step 5: Solve for x
    x = 9,161,081,436.07/107,438.59
  6. Step 6: Final answer
    x = 85,268.07

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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.