Home / 74,076.90-111,177.57-69,406.04

Finding the Fourth Proportional to 74,076.90, 111,177.57 and 69,406.04

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Solution

The fourth proportional to 74,076.90, 111,177.57 and 69,406.04 is: 104,167.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,076.90 : 111,177.57 = 69,406.04 : x
  2. Step 2: Convert to fraction form
    74,076.90/111,177.57 = 69,406.04/x
  3. Step 3: Cross multiply
    74,076.90x = 111,177.57 × 69,406.04
  4. Step 4: Simplify right side
    74,076.90x = 7,716,394,870.52
  5. Step 5: Solve for x
    x = 7,716,394,870.52/74,076.90
  6. Step 6: Final answer
    x = 104,167.36

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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.