Home / 127,330.21-190,876.60-43,031.43

Finding the Fourth Proportional to 127,330.21, 190,876.60 and 43,031.43

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Solution

The fourth proportional to 127,330.21, 190,876.60 and 43,031.43 is: 64,507.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,330.21 : 190,876.60 = 43,031.43 : x
  2. Step 2: Convert to fraction form
    127,330.21/190,876.60 = 43,031.43/x
  3. Step 3: Cross multiply
    127,330.21x = 190,876.60 × 43,031.43
  4. Step 4: Simplify right side
    127,330.21x = 8,213,692,943.96
  5. Step 5: Solve for x
    x = 8,213,692,943.96/127,330.21
  6. Step 6: Final answer
    x = 64,507.03

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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.