Home / 107,629.80-161,444.70-106,938.60

Finding the Fourth Proportional to 107,629.80, 161,444.70 and 106,938.60

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Solution

The fourth proportional to 107,629.80, 161,444.70 and 106,938.60 is: 160,407.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,629.80 : 161,444.70 = 106,938.60 : x
  2. Step 2: Convert to fraction form
    107,629.80/161,444.70 = 106,938.60/x
  3. Step 3: Cross multiply
    107,629.80x = 161,444.70 × 106,938.60
  4. Step 4: Simplify right side
    107,629.80x = 17,264,670,195.42
  5. Step 5: Solve for x
    x = 17,264,670,195.42/107,629.80
  6. Step 6: Final answer
    x = 160,407.90

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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.