Home / 193,501.10-290,255.00-67,145.76

Finding the Fourth Proportional to 193,501.10, 290,255.00 and 67,145.76

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Solution

The fourth proportional to 193,501.10, 290,255.00 and 67,145.76 is: 100,719.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,501.10 : 290,255.00 = 67,145.76 : x
  2. Step 2: Convert to fraction form
    193,501.10/290,255.00 = 67,145.76/x
  3. Step 3: Cross multiply
    193,501.10x = 290,255.00 × 67,145.76
  4. Step 4: Simplify right side
    193,501.10x = 19,489,392,233.07
  5. Step 5: Solve for x
    x = 19,489,392,233.07/193,501.10
  6. Step 6: Final answer
    x = 100,719.80

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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.