Home / 193,872.24-290,920.74-81,543.60

Finding the Fourth Proportional to 193,872.24, 290,920.74 and 81,543.60

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Solution

The fourth proportional to 193,872.24, 290,920.74 and 81,543.60 is: 122,362.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,872.24 : 290,920.74 = 81,543.60 : x
  2. Step 2: Convert to fraction form
    193,872.24/290,920.74 = 81,543.60/x
  3. Step 3: Cross multiply
    193,872.24x = 290,920.74 × 81,543.60
  4. Step 4: Simplify right side
    193,872.24x = 23,722,724,454.26
  5. Step 5: Solve for x
    x = 23,722,724,454.26/193,872.24
  6. Step 6: Final answer
    x = 122,362.67

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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.