Home / 175,051.20-262,358.10-128,249.40

Finding the Fourth Proportional to 175,051.20, 262,358.10 and 128,249.40

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Solution

The fourth proportional to 175,051.20, 262,358.10 and 128,249.40 is: 192,213.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,051.20 : 262,358.10 = 128,249.40 : x
  2. Step 2: Convert to fraction form
    175,051.20/262,358.10 = 128,249.40/x
  3. Step 3: Cross multiply
    175,051.20x = 262,358.10 × 128,249.40
  4. Step 4: Simplify right side
    175,051.20x = 33,647,268,910.14
  5. Step 5: Solve for x
    x = 33,647,268,910.14/175,051.20
  6. Step 6: Final answer
    x = 192,213.87

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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.