Home / 118,029.99-162,709.90-81,676.05

Finding the Fourth Proportional to 118,029.99, 162,709.90 and 81,676.05

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Solution

The fourth proportional to 118,029.99, 162,709.90 and 81,676.05 is: 112,594.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,029.99 : 162,709.90 = 81,676.05 : x
  2. Step 2: Convert to fraction form
    118,029.99/162,709.90 = 81,676.05/x
  3. Step 3: Cross multiply
    118,029.99x = 162,709.90 × 81,676.05
  4. Step 4: Simplify right side
    118,029.99x = 13,289,501,113.54
  5. Step 5: Solve for x
    x = 13,289,501,113.54/118,029.99
  6. Step 6: Final answer
    x = 112,594.27

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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.