Home / 104,680.02-156,960.44-71,440.36

Finding the Fourth Proportional to 104,680.02, 156,960.44 and 71,440.36

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Solution

The fourth proportional to 104,680.02, 156,960.44 and 71,440.36 is: 107,119.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,680.02 : 156,960.44 = 71,440.36 : x
  2. Step 2: Convert to fraction form
    104,680.02/156,960.44 = 71,440.36/x
  3. Step 3: Cross multiply
    104,680.02x = 156,960.44 × 71,440.36
  4. Step 4: Simplify right side
    104,680.02x = 11,213,310,339.36
  5. Step 5: Solve for x
    x = 11,213,310,339.36/104,680.02
  6. Step 6: Final answer
    x = 107,119.87

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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.