Home / 193,719.30-290,570.88-67,388.15

Finding the Fourth Proportional to 193,719.30, 290,570.88 and 67,388.15

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Solution

The fourth proportional to 193,719.30, 290,570.88 and 67,388.15 is: 101,079.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,719.30 : 290,570.88 = 67,388.15 : x
  2. Step 2: Convert to fraction form
    193,719.30/290,570.88 = 67,388.15/x
  3. Step 3: Cross multiply
    193,719.30x = 290,570.88 × 67,388.15
  4. Step 4: Simplify right side
    193,719.30x = 19,581,032,594.22
  5. Step 5: Solve for x
    x = 19,581,032,594.22/193,719.30
  6. Step 6: Final answer
    x = 101,079.41

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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.