Home / 126,680.03-174,742.28-83,659.92

Finding the Fourth Proportional to 126,680.03, 174,742.28 and 83,659.92

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Solution

The fourth proportional to 126,680.03, 174,742.28 and 83,659.92 is: 115,400.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,680.03 : 174,742.28 = 83,659.92 : x
  2. Step 2: Convert to fraction form
    126,680.03/174,742.28 = 83,659.92/x
  3. Step 3: Cross multiply
    126,680.03x = 174,742.28 × 83,659.92
  4. Step 4: Simplify right side
    126,680.03x = 14,618,924,405.56
  5. Step 5: Solve for x
    x = 14,618,924,405.56/126,680.03
  6. Step 6: Final answer
    x = 115,400.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.