Home / 193,558.20-290,423.70-68,988.60

Finding the Fourth Proportional to 193,558.20, 290,423.70 and 68,988.60

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Solution

The fourth proportional to 193,558.20, 290,423.70 and 68,988.60 is: 103,513.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,558.20 : 290,423.70 = 68,988.60 : x
  2. Step 2: Convert to fraction form
    193,558.20/290,423.70 = 68,988.60/x
  3. Step 3: Cross multiply
    193,558.20x = 290,423.70 × 68,988.60
  4. Step 4: Simplify right side
    193,558.20x = 20,035,924,469.82
  5. Step 5: Solve for x
    x = 20,035,924,469.82/193,558.20
  6. Step 6: Final answer
    x = 103,513.69

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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.