Home / 101,068.03-139,474.53-55,747.23

Finding the Fourth Proportional to 101,068.03, 139,474.53 and 55,747.23

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Solution

The fourth proportional to 101,068.03, 139,474.53 and 55,747.23 is: 76,931.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,068.03 : 139,474.53 = 55,747.23 : x
  2. Step 2: Convert to fraction form
    101,068.03/139,474.53 = 55,747.23/x
  3. Step 3: Cross multiply
    101,068.03x = 139,474.53 × 55,747.23
  4. Step 4: Simplify right side
    101,068.03x = 7,775,319,121.36
  5. Step 5: Solve for x
    x = 7,775,319,121.36/101,068.03
  6. Step 6: Final answer
    x = 76,931.54

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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.