Home / 199,918.31-299,930.04-71,847.53

Finding the Fourth Proportional to 199,918.31, 299,930.04 and 71,847.53

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Solution

The fourth proportional to 199,918.31, 299,930.04 and 71,847.53 is: 107,790.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,918.31 : 299,930.04 = 71,847.53 : x
  2. Step 2: Convert to fraction form
    199,918.31/299,930.04 = 71,847.53/x
  3. Step 3: Cross multiply
    199,918.31x = 299,930.04 × 71,847.53
  4. Step 4: Simplify right side
    199,918.31x = 21,549,232,546.80
  5. Step 5: Solve for x
    x = 21,549,232,546.80/199,918.31
  6. Step 6: Final answer
    x = 107,790.19

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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.