Home / 139,743.12-209,716.20-104,777.04

Finding the Fourth Proportional to 139,743.12, 209,716.20 and 104,777.04

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Solution

The fourth proportional to 139,743.12, 209,716.20 and 104,777.04 is: 157,241.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,743.12 : 209,716.20 = 104,777.04 : x
  2. Step 2: Convert to fraction form
    139,743.12/209,716.20 = 104,777.04/x
  3. Step 3: Cross multiply
    139,743.12x = 209,716.20 × 104,777.04
  4. Step 4: Simplify right side
    139,743.12x = 21,973,442,676.05
  5. Step 5: Solve for x
    x = 21,973,442,676.05/139,743.12
  6. Step 6: Final answer
    x = 157,241.68

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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.