Home / 107,911.80-161,914.40-57,933.60

Finding the Fourth Proportional to 107,911.80, 161,914.40 and 57,933.60

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Solution

The fourth proportional to 107,911.80, 161,914.40 and 57,933.60 is: 86,925.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,911.80 : 161,914.40 = 57,933.60 : x
  2. Step 2: Convert to fraction form
    107,911.80/161,914.40 = 57,933.60/x
  3. Step 3: Cross multiply
    107,911.80x = 161,914.40 × 57,933.60
  4. Step 4: Simplify right side
    107,911.80x = 9,380,284,083.84
  5. Step 5: Solve for x
    x = 9,380,284,083.84/107,911.80
  6. Step 6: Final answer
    x = 86,925.47

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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.