Home / 144,724.40-199,717.49-81,064.48

Finding the Fourth Proportional to 144,724.40, 199,717.49 and 81,064.48

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Solution

The fourth proportional to 144,724.40, 199,717.49 and 81,064.48 is: 111,867.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,724.40 : 199,717.49 = 81,064.48 : x
  2. Step 2: Convert to fraction form
    144,724.40/199,717.49 = 81,064.48/x
  3. Step 3: Cross multiply
    144,724.40x = 199,717.49 × 81,064.48
  4. Step 4: Simplify right side
    144,724.40x = 16,189,993,069.85
  5. Step 5: Solve for x
    x = 16,189,993,069.85/144,724.40
  6. Step 6: Final answer
    x = 111,867.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.