Home / 199,080.08-298,664.47-72,720.13

Finding the Fourth Proportional to 199,080.08, 298,664.47 and 72,720.13

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Solution

The fourth proportional to 199,080.08, 298,664.47 and 72,720.13 is: 109,096.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,080.08 : 298,664.47 = 72,720.13 : x
  2. Step 2: Convert to fraction form
    199,080.08/298,664.47 = 72,720.13/x
  3. Step 3: Cross multiply
    199,080.08x = 298,664.47 × 72,720.13
  4. Step 4: Simplify right side
    199,080.08x = 21,718,918,579.97
  5. Step 5: Solve for x
    x = 21,718,918,579.97/199,080.08
  6. Step 6: Final answer
    x = 109,096.39

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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.