Home / 127,868.30-191,857.77-68,634.80

Finding the Fourth Proportional to 127,868.30, 191,857.77 and 68,634.80

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Solution

The fourth proportional to 127,868.30, 191,857.77 and 68,634.80 is: 102,981.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,868.30 : 191,857.77 = 68,634.80 : x
  2. Step 2: Convert to fraction form
    127,868.30/191,857.77 = 68,634.80/x
  3. Step 3: Cross multiply
    127,868.30x = 191,857.77 × 68,634.80
  4. Step 4: Simplify right side
    127,868.30x = 13,168,118,713.11
  5. Step 5: Solve for x
    x = 13,168,118,713.11/127,868.30
  6. Step 6: Final answer
    x = 102,981.89

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1.5x scale

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.