Home / 111,806.12-154,291.94-62,078.30

Finding the Fourth Proportional to 111,806.12, 154,291.94 and 62,078.30

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Solution

The fourth proportional to 111,806.12, 154,291.94 and 62,078.30 is: 85,667.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,806.12 : 154,291.94 = 62,078.30 : x
  2. Step 2: Convert to fraction form
    111,806.12/154,291.94 = 62,078.30/x
  3. Step 3: Cross multiply
    111,806.12x = 154,291.94 × 62,078.30
  4. Step 4: Simplify right side
    111,806.12x = 9,578,181,068.44
  5. Step 5: Solve for x
    x = 9,578,181,068.44/111,806.12
  6. Step 6: Final answer
    x = 85,667.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.