Home / 199,921.19-299,897.27-66,801.92

Finding the Fourth Proportional to 199,921.19, 299,897.27 and 66,801.92

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Solution

The fourth proportional to 199,921.19, 299,897.27 and 66,801.92 is: 100,208.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,921.19 : 299,897.27 = 66,801.92 : x
  2. Step 2: Convert to fraction form
    199,921.19/299,897.27 = 66,801.92/x
  3. Step 3: Cross multiply
    199,921.19x = 299,897.27 × 66,801.92
  4. Step 4: Simplify right side
    199,921.19x = 20,033,711,855.77
  5. Step 5: Solve for x
    x = 20,033,711,855.77/199,921.19
  6. Step 6: Final answer
    x = 100,208.05

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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.