Home / 139,586.47-209,352.99-54,197.33

Finding the Fourth Proportional to 139,586.47, 209,352.99 and 54,197.33

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Solution

The fourth proportional to 139,586.47, 209,352.99 and 54,197.33 is: 81,285.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,586.47 : 209,352.99 = 54,197.33 : x
  2. Step 2: Convert to fraction form
    139,586.47/209,352.99 = 54,197.33/x
  3. Step 3: Cross multiply
    139,586.47x = 209,352.99 × 54,197.33
  4. Step 4: Simplify right side
    139,586.47x = 11,346,372,241.99
  5. Step 5: Solve for x
    x = 11,346,372,241.99/139,586.47
  6. Step 6: Final answer
    x = 81,285.62

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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.