Home / 79,992.06-120,111.40-67,673.94

Finding the Fourth Proportional to 79,992.06, 120,111.40 and 67,673.94

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Solution

The fourth proportional to 79,992.06, 120,111.40 and 67,673.94 is: 101,615.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,992.06 : 120,111.40 = 67,673.94 : x
  2. Step 2: Convert to fraction form
    79,992.06/120,111.40 = 67,673.94/x
  3. Step 3: Cross multiply
    79,992.06x = 120,111.40 × 67,673.94
  4. Step 4: Simplify right side
    79,992.06x = 8,128,411,676.92
  5. Step 5: Solve for x
    x = 8,128,411,676.92/79,992.06
  6. Step 6: Final answer
    x = 101,615.23

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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.