Home / 123,908.36-185,403.24-74,015.60

Finding the Fourth Proportional to 123,908.36, 185,403.24 and 74,015.60

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Solution

The fourth proportional to 123,908.36, 185,403.24 and 74,015.60 is: 110,749.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,908.36 : 185,403.24 = 74,015.60 : x
  2. Step 2: Convert to fraction form
    123,908.36/185,403.24 = 74,015.60/x
  3. Step 3: Cross multiply
    123,908.36x = 185,403.24 × 74,015.60
  4. Step 4: Simplify right side
    123,908.36x = 13,722,732,050.54
  5. Step 5: Solve for x
    x = 13,722,732,050.54/123,908.36
  6. Step 6: Final answer
    x = 110,749.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.