Home / 139,589.10-209,383.65-133,028.10

Finding the Fourth Proportional to 139,589.10, 209,383.65 and 133,028.10

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Solution

The fourth proportional to 139,589.10, 209,383.65 and 133,028.10 is: 199,542.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,589.10 : 209,383.65 = 133,028.10 : x
  2. Step 2: Convert to fraction form
    139,589.10/209,383.65 = 133,028.10/x
  3. Step 3: Cross multiply
    139,589.10x = 209,383.65 × 133,028.10
  4. Step 4: Simplify right side
    139,589.10x = 27,853,909,130.57
  5. Step 5: Solve for x
    x = 27,853,909,130.57/139,589.10
  6. Step 6: Final answer
    x = 199,542.15

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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.