Home / 193,393.08-290,018.75-67,000.68

Finding the Fourth Proportional to 193,393.08, 290,018.75 and 67,000.68

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Solution

The fourth proportional to 193,393.08, 290,018.75 and 67,000.68 is: 100,476.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,393.08 : 290,018.75 = 67,000.68 : x
  2. Step 2: Convert to fraction form
    193,393.08/290,018.75 = 67,000.68/x
  3. Step 3: Cross multiply
    193,393.08x = 290,018.75 × 67,000.68
  4. Step 4: Simplify right side
    193,393.08x = 19,431,453,127.75
  5. Step 5: Solve for x
    x = 19,431,453,127.75/193,393.08
  6. Step 6: Final answer
    x = 100,476.47

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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.