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Finding the Fourth Proportional to 134,138, 185,110.44 and 74,522

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Solution

The fourth proportional to 134,138, 185,110.44 and 74,522 is: 102,840.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,138 : 185,110.44 = 74,522 : x
  2. Step 2: Convert to fraction form
    134,138/185,110.44 = 74,522/x
  3. Step 3: Cross multiply
    134,138x = 185,110.44 × 74,522
  4. Step 4: Simplify right side
    134,138x = 13,794,800,209.68
  5. Step 5: Solve for x
    x = 13,794,800,209.68/134,138
  6. Step 6: Final answer
    x = 102,840.36

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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.