Home / 199,300.80-298,886.16-66,145.32

Finding the Fourth Proportional to 199,300.80, 298,886.16 and 66,145.32

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Solution

The fourth proportional to 199,300.80, 298,886.16 and 66,145.32 is: 99,196.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,300.80 : 298,886.16 = 66,145.32 : x
  2. Step 2: Convert to fraction form
    199,300.80/298,886.16 = 66,145.32/x
  3. Step 3: Cross multiply
    199,300.80x = 298,886.16 × 66,145.32
  4. Step 4: Simplify right side
    199,300.80x = 19,769,920,696.77
  5. Step 5: Solve for x
    x = 19,769,920,696.77/199,300.80
  6. Step 6: Final answer
    x = 99,196.39

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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.