Home / 193,560.20-290,426.70-68,990.60

Finding the Fourth Proportional to 193,560.20, 290,426.70 and 68,990.60

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Solution

The fourth proportional to 193,560.20, 290,426.70 and 68,990.60 is: 103,516.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,560.20 : 290,426.70 = 68,990.60 : x
  2. Step 2: Convert to fraction form
    193,560.20/290,426.70 = 68,990.60/x
  3. Step 3: Cross multiply
    193,560.20x = 290,426.70 × 68,990.60
  4. Step 4: Simplify right side
    193,560.20x = 20,036,712,289.02
  5. Step 5: Solve for x
    x = 20,036,712,289.02/193,560.20
  6. Step 6: Final answer
    x = 103,516.70

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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.