Home / 127,121.92-190,744.84-52,264.55

Finding the Fourth Proportional to 127,121.92, 190,744.84 and 52,264.55

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Solution

The fourth proportional to 127,121.92, 190,744.84 and 52,264.55 is: 78,422.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,121.92 : 190,744.84 = 52,264.55 : x
  2. Step 2: Convert to fraction form
    127,121.92/190,744.84 = 52,264.55/x
  3. Step 3: Cross multiply
    127,121.92x = 190,744.84 × 52,264.55
  4. Step 4: Simplify right side
    127,121.92x = 9,969,193,573.62
  5. Step 5: Solve for x
    x = 9,969,193,573.62/127,121.92
  6. Step 6: Final answer
    x = 78,422.30

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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.