Home / 101,858.22-140,561.66-56,536.09

Finding the Fourth Proportional to 101,858.22, 140,561.66 and 56,536.09

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Solution

The fourth proportional to 101,858.22, 140,561.66 and 56,536.09 is: 78,018.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,858.22 : 140,561.66 = 56,536.09 : x
  2. Step 2: Convert to fraction form
    101,858.22/140,561.66 = 56,536.09/x
  3. Step 3: Cross multiply
    101,858.22x = 140,561.66 × 56,536.09
  4. Step 4: Simplify right side
    101,858.22x = 7,946,805,674.82
  5. Step 5: Solve for x
    x = 7,946,805,674.82/101,858.22
  6. Step 6: Final answer
    x = 78,018.31

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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.