Home / 215,834.14-298,039.16-135,399.93

Finding the Fourth Proportional to 215,834.14, 298,039.16 and 135,399.93

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Solution

The fourth proportional to 215,834.14, 298,039.16 and 135,399.93 is: 186,969.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,834.14 : 298,039.16 = 135,399.93 : x
  2. Step 2: Convert to fraction form
    215,834.14/298,039.16 = 135,399.93/x
  3. Step 3: Cross multiply
    215,834.14x = 298,039.16 × 135,399.93
  4. Step 4: Simplify right side
    215,834.14x = 40,354,481,401.26
  5. Step 5: Solve for x
    x = 40,354,481,401.26/215,834.14
  6. Step 6: Final answer
    x = 186,969.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.