Home / 199,973.94-299,976.39-66,854.69

Finding the Fourth Proportional to 199,973.94, 299,976.39 and 66,854.69

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Solution

The fourth proportional to 199,973.94, 299,976.39 and 66,854.69 is: 100,287.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,973.94 : 299,976.39 = 66,854.69 : x
  2. Step 2: Convert to fraction form
    199,973.94/299,976.39 = 66,854.69/x
  3. Step 3: Cross multiply
    199,973.94x = 299,976.39 × 66,854.69
  4. Step 4: Simplify right side
    199,973.94x = 20,054,828,560.77
  5. Step 5: Solve for x
    x = 20,054,828,560.77/199,973.94
  6. Step 6: Final answer
    x = 100,287.21

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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.