Home / 104,662.48-156,881.88-76,131.04

Finding the Fourth Proportional to 104,662.48, 156,881.88 and 76,131.04

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Solution

The fourth proportional to 104,662.48, 156,881.88 and 76,131.04 is: 114,115.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,662.48 : 156,881.88 = 76,131.04 : x
  2. Step 2: Convert to fraction form
    104,662.48/156,881.88 = 76,131.04/x
  3. Step 3: Cross multiply
    104,662.48x = 156,881.88 × 76,131.04
  4. Step 4: Simplify right side
    104,662.48x = 11,943,580,681.56
  5. Step 5: Solve for x
    x = 11,943,580,681.56/104,662.48
  6. Step 6: Final answer
    x = 114,115.21

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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.