Home / 104,605.40-156,908.10-73,112.60

Finding the Fourth Proportional to 104,605.40, 156,908.10 and 73,112.60

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Solution

The fourth proportional to 104,605.40, 156,908.10 and 73,112.60 is: 109,668.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,605.40 : 156,908.10 = 73,112.60 : x
  2. Step 2: Convert to fraction form
    104,605.40/156,908.10 = 73,112.60/x
  3. Step 3: Cross multiply
    104,605.40x = 156,908.10 × 73,112.60
  4. Step 4: Simplify right side
    104,605.40x = 11,471,959,152.06
  5. Step 5: Solve for x
    x = 11,471,959,152.06/104,605.40
  6. Step 6: Final answer
    x = 109,668.90

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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.