Home / 123,904.35-185,875.97-74,040.75

Finding the Fourth Proportional to 123,904.35, 185,875.97 and 74,040.75

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Solution

The fourth proportional to 123,904.35, 185,875.97 and 74,040.75 is: 111,072.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,904.35 : 185,875.97 = 74,040.75 : x
  2. Step 2: Convert to fraction form
    123,904.35/185,875.97 = 74,040.75/x
  3. Step 3: Cross multiply
    123,904.35x = 185,875.97 × 74,040.75
  4. Step 4: Simplify right side
    123,904.35x = 13,762,395,855.57
  5. Step 5: Solve for x
    x = 13,762,395,855.57/123,904.35
  6. Step 6: Final answer
    x = 111,072.74

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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.