Home / 127,868.34-191,857.77-68,634.75

Finding the Fourth Proportional to 127,868.34, 191,857.77 and 68,634.75

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Solution

The fourth proportional to 127,868.34, 191,857.77 and 68,634.75 is: 102,981.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,868.34 : 191,857.77 = 68,634.75 : x
  2. Step 2: Convert to fraction form
    127,868.34/191,857.77 = 68,634.75/x
  3. Step 3: Cross multiply
    127,868.34x = 191,857.77 × 68,634.75
  4. Step 4: Simplify right side
    127,868.34x = 13,168,110,079.51
  5. Step 5: Solve for x
    x = 13,168,110,079.51/127,868.34
  6. Step 6: Final answer
    x = 102,981.79

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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.