Home / 127,116.08-190,706.56-74,571.92

Finding the Fourth Proportional to 127,116.08, 190,706.56 and 74,571.92

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Solution

The fourth proportional to 127,116.08, 190,706.56 and 74,571.92 is: 111,876.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,116.08 : 190,706.56 = 74,571.92 : x
  2. Step 2: Convert to fraction form
    127,116.08/190,706.56 = 74,571.92/x
  3. Step 3: Cross multiply
    127,116.08x = 190,706.56 × 74,571.92
  4. Step 4: Simplify right side
    127,116.08x = 14,221,354,335.80
  5. Step 5: Solve for x
    x = 14,221,354,335.80/127,116.08
  6. Step 6: Final answer
    x = 111,876.91

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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.