Home / 127,264.26-190,976.86-71,141.21

Finding the Fourth Proportional to 127,264.26, 190,976.86 and 71,141.21

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Solution

The fourth proportional to 127,264.26, 190,976.86 and 71,141.21 is: 106,756.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,264.26 : 190,976.86 = 71,141.21 : x
  2. Step 2: Convert to fraction form
    127,264.26/190,976.86 = 71,141.21/x
  3. Step 3: Cross multiply
    127,264.26x = 190,976.86 × 71,141.21
  4. Step 4: Simplify right side
    127,264.26x = 13,586,325,489.81
  5. Step 5: Solve for x
    x = 13,586,325,489.81/127,264.26
  6. Step 6: Final answer
    x = 106,756.80

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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.