Home / 101,146.04-139,634.03-73,891.54

Finding the Fourth Proportional to 101,146.04, 139,634.03 and 73,891.54

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Solution

The fourth proportional to 101,146.04, 139,634.03 and 73,891.54 is: 102,008.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,146.04 : 139,634.03 = 73,891.54 : x
  2. Step 2: Convert to fraction form
    101,146.04/139,634.03 = 73,891.54/x
  3. Step 3: Cross multiply
    101,146.04x = 139,634.03 × 73,891.54
  4. Step 4: Simplify right side
    101,146.04x = 10,317,773,513.11
  5. Step 5: Solve for x
    x = 10,317,773,513.11/101,146.04
  6. Step 6: Final answer
    x = 102,008.67

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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.