Home / 127,400.06-191,247.78-68,351.06

Finding the Fourth Proportional to 127,400.06, 191,247.78 and 68,351.06

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Solution

The fourth proportional to 127,400.06, 191,247.78 and 68,351.06 is: 102,605.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,400.06 : 191,247.78 = 68,351.06 : x
  2. Step 2: Convert to fraction form
    127,400.06/191,247.78 = 68,351.06/x
  3. Step 3: Cross multiply
    127,400.06x = 191,247.78 × 68,351.06
  4. Step 4: Simplify right side
    127,400.06x = 13,071,988,485.65
  5. Step 5: Solve for x
    x = 13,071,988,485.65/127,400.06
  6. Step 6: Final answer
    x = 102,605.83

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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.