Home / 111,918.18-167,933.55-69,787.38

Finding the Fourth Proportional to 111,918.18, 167,933.55 and 69,787.38

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Solution

The fourth proportional to 111,918.18, 167,933.55 and 69,787.38 is: 104,716.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,918.18 : 167,933.55 = 69,787.38 : x
  2. Step 2: Convert to fraction form
    111,918.18/167,933.55 = 69,787.38/x
  3. Step 3: Cross multiply
    111,918.18x = 167,933.55 × 69,787.38
  4. Step 4: Simplify right side
    111,918.18x = 11,719,642,468.60
  5. Step 5: Solve for x
    x = 11,719,642,468.60/111,918.18
  6. Step 6: Final answer
    x = 104,716.16

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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.