Home / 124,779.64-172,198.22-68,194.68

Finding the Fourth Proportional to 124,779.64, 172,198.22 and 68,194.68

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Solution

The fourth proportional to 124,779.64, 172,198.22 and 68,194.68 is: 94,109.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,779.64 : 172,198.22 = 68,194.68 : x
  2. Step 2: Convert to fraction form
    124,779.64/172,198.22 = 68,194.68/x
  3. Step 3: Cross multiply
    124,779.64x = 172,198.22 × 68,194.68
  4. Step 4: Simplify right side
    124,779.64x = 11,743,002,509.47
  5. Step 5: Solve for x
    x = 11,743,002,509.47/124,779.64
  6. Step 6: Final answer
    x = 94,109.92

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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.