Home / 172,914.89-259,395.02-67,720.19

Finding the Fourth Proportional to 172,914.89, 259,395.02 and 67,720.19

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Solution

The fourth proportional to 172,914.89, 259,395.02 and 67,720.19 is: 101,589.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,914.89 : 259,395.02 = 67,720.19 : x
  2. Step 2: Convert to fraction form
    172,914.89/259,395.02 = 67,720.19/x
  3. Step 3: Cross multiply
    172,914.89x = 259,395.02 × 67,720.19
  4. Step 4: Simplify right side
    172,914.89x = 17,566,280,857.24
  5. Step 5: Solve for x
    x = 17,566,280,857.24/172,914.89
  6. Step 6: Final answer
    x = 101,589.17

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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.