Home / 127,286.90-190,930.35-83,000.15

Finding the Fourth Proportional to 127,286.90, 190,930.35 and 83,000.15

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Solution

The fourth proportional to 127,286.90, 190,930.35 and 83,000.15 is: 124,500.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,286.90 : 190,930.35 = 83,000.15 : x
  2. Step 2: Convert to fraction form
    127,286.90/190,930.35 = 83,000.15/x
  3. Step 3: Cross multiply
    127,286.90x = 190,930.35 × 83,000.15
  4. Step 4: Simplify right side
    127,286.90x = 15,847,247,689.55
  5. Step 5: Solve for x
    x = 15,847,247,689.55/127,286.90
  6. Step 6: Final answer
    x = 124,500.23

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Similar ratio
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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.