Home / 124,861.36-172,309.44-68,272.96

Finding the Fourth Proportional to 124,861.36, 172,309.44 and 68,272.96

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Solution

The fourth proportional to 124,861.36, 172,309.44 and 68,272.96 is: 94,217.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,861.36 : 172,309.44 = 68,272.96 : x
  2. Step 2: Convert to fraction form
    124,861.36/172,309.44 = 68,272.96/x
  3. Step 3: Cross multiply
    124,861.36x = 172,309.44 × 68,272.96
  4. Step 4: Simplify right side
    124,861.36x = 11,764,075,504.74
  5. Step 5: Solve for x
    x = 11,764,075,504.74/124,861.36
  6. Step 6: Final answer
    x = 94,217.10

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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.