Home / 199,680.12-299,499.66-66,546

Finding the Fourth Proportional to 199,680.12, 299,499.66 and 66,546

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Solution

The fourth proportional to 199,680.12, 299,499.66 and 66,546 is: 99,812.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,680.12 : 299,499.66 = 66,546 : x
  2. Step 2: Convert to fraction form
    199,680.12/299,499.66 = 66,546/x
  3. Step 3: Cross multiply
    199,680.12x = 299,499.66 × 66,546
  4. Step 4: Simplify right side
    199,680.12x = 19,930,504,374.36
  5. Step 5: Solve for x
    x = 19,930,504,374.36/199,680.12
  6. Step 6: Final answer
    x = 99,812.16

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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.