Home / 100,923.44-139,272.56-58,485.92

Finding the Fourth Proportional to 100,923.44, 139,272.56 and 58,485.92

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Solution

The fourth proportional to 100,923.44, 139,272.56 and 58,485.92 is: 80,709.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,923.44 : 139,272.56 = 58,485.92 : x
  2. Step 2: Convert to fraction form
    100,923.44/139,272.56 = 58,485.92/x
  3. Step 3: Cross multiply
    100,923.44x = 139,272.56 × 58,485.92
  4. Step 4: Simplify right side
    100,923.44x = 8,145,483,802.36
  5. Step 5: Solve for x
    x = 8,145,483,802.36/100,923.44
  6. Step 6: Final answer
    x = 80,709.53

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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.