Home / 104,645.94-156,857.13-76,114.50

Finding the Fourth Proportional to 104,645.94, 156,857.13 and 76,114.50

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Solution

The fourth proportional to 104,645.94, 156,857.13 and 76,114.50 is: 114,090.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,645.94 : 156,857.13 = 76,114.50 : x
  2. Step 2: Convert to fraction form
    104,645.94/156,857.13 = 76,114.50/x
  3. Step 3: Cross multiply
    104,645.94x = 156,857.13 × 76,114.50
  4. Step 4: Simplify right side
    104,645.94x = 11,939,102,021.39
  5. Step 5: Solve for x
    x = 11,939,102,021.39/104,645.94
  6. Step 6: Final answer
    x = 114,090.45

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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.