Home / 199,918.37-299,729.41-121,013.93

Finding the Fourth Proportional to 199,918.37, 299,729.41 and 121,013.93

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Solution

The fourth proportional to 199,918.37, 299,729.41 and 121,013.93 is: 181,431.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,918.37 : 299,729.41 = 121,013.93 : x
  2. Step 2: Convert to fraction form
    199,918.37/299,729.41 = 121,013.93/x
  3. Step 3: Cross multiply
    199,918.37x = 299,729.41 × 121,013.93
  4. Step 4: Simplify right side
    199,918.37x = 36,271,433,840.68
  5. Step 5: Solve for x
    x = 36,271,433,840.68/199,918.37
  6. Step 6: Final answer
    x = 181,431.22

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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.