Home / 199,977.03-299,981.49-66,857.98

Finding the Fourth Proportional to 199,977.03, 299,981.49 and 66,857.98

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Solution

The fourth proportional to 199,977.03, 299,981.49 and 66,857.98 is: 100,292.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,977.03 : 299,981.49 = 66,857.98 : x
  2. Step 2: Convert to fraction form
    199,977.03/299,981.49 = 66,857.98/x
  3. Step 3: Cross multiply
    199,977.03x = 299,981.49 × 66,857.98
  4. Step 4: Simplify right side
    199,977.03x = 20,056,156,458.79
  5. Step 5: Solve for x
    x = 20,056,156,458.79/199,977.03
  6. Step 6: Final answer
    x = 100,292.30

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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.