Home / 199,914.87-299,724.17-121,010.43

Finding the Fourth Proportional to 199,914.87, 299,724.17 and 121,010.43

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Solution

The fourth proportional to 199,914.87, 299,724.17 and 121,010.43 is: 181,425.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,914.87 : 299,724.17 = 121,010.43 : x
  2. Step 2: Convert to fraction form
    199,914.87/299,724.17 = 121,010.43/x
  3. Step 3: Cross multiply
    199,914.87x = 299,724.17 × 121,010.43
  4. Step 4: Simplify right side
    199,914.87x = 36,269,750,088.04
  5. Step 5: Solve for x
    x = 36,269,750,088.04/199,914.87
  6. Step 6: Final answer
    x = 181,425.97

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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.