Home / 199,985.83-299,241.63-120,072.37

Finding the Fourth Proportional to 199,985.83, 299,241.63 and 120,072.37

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Solution

The fourth proportional to 199,985.83, 299,241.63 and 120,072.37 is: 179,665.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,985.83 : 299,241.63 = 120,072.37 : x
  2. Step 2: Convert to fraction form
    199,985.83/299,241.63 = 120,072.37/x
  3. Step 3: Cross multiply
    199,985.83x = 299,241.63 × 120,072.37
  4. Step 4: Simplify right side
    199,985.83x = 35,930,651,716.76
  5. Step 5: Solve for x
    x = 35,930,651,716.76/199,985.83
  6. Step 6: Final answer
    x = 179,665.99

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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.