Home / 199,458.23-299,189.93-66,338.51

Finding the Fourth Proportional to 199,458.23, 299,189.93 and 66,338.51

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Solution

The fourth proportional to 199,458.23, 299,189.93 and 66,338.51 is: 99,508.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,458.23 : 299,189.93 = 66,338.51 : x
  2. Step 2: Convert to fraction form
    199,458.23/299,189.93 = 66,338.51/x
  3. Step 3: Cross multiply
    199,458.23x = 299,189.93 × 66,338.51
  4. Step 4: Simplify right side
    199,458.23x = 19,847,812,335.56
  5. Step 5: Solve for x
    x = 19,847,812,335.56/199,458.23
  6. Step 6: Final answer
    x = 99,508.62

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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.