Home / 199,579.72-299,382.54-66,454.60

Finding the Fourth Proportional to 199,579.72, 299,382.54 and 66,454.60

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Solution

The fourth proportional to 199,579.72, 299,382.54 and 66,454.60 is: 99,686.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,579.72 : 299,382.54 = 66,454.60 : x
  2. Step 2: Convert to fraction form
    199,579.72/299,382.54 = 66,454.60/x
  3. Step 3: Cross multiply
    199,579.72x = 299,382.54 × 66,454.60
  4. Step 4: Simplify right side
    199,579.72x = 19,895,346,942.68
  5. Step 5: Solve for x
    x = 19,895,346,942.68/199,579.72
  6. Step 6: Final answer
    x = 99,686.22

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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.