Home / 168,534.06-252,739.08-68,640

Finding the Fourth Proportional to 168,534.06, 252,739.08 and 68,640

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Solution

The fourth proportional to 168,534.06, 252,739.08 and 68,640 is: 102,934.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,534.06 : 252,739.08 = 68,640 : x
  2. Step 2: Convert to fraction form
    168,534.06/252,739.08 = 68,640/x
  3. Step 3: Cross multiply
    168,534.06x = 252,739.08 × 68,640
  4. Step 4: Simplify right side
    168,534.06x = 17,348,010,451.20
  5. Step 5: Solve for x
    x = 17,348,010,451.20/168,534.06
  6. Step 6: Final answer
    x = 102,934.74

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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.