Home / 110,905.07-153,054.56-67,871.05

Finding the Fourth Proportional to 110,905.07, 153,054.56 and 67,871.05

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Solution

The fourth proportional to 110,905.07, 153,054.56 and 67,871.05 is: 93,665.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,905.07 : 153,054.56 = 67,871.05 : x
  2. Step 2: Convert to fraction form
    110,905.07/153,054.56 = 67,871.05/x
  3. Step 3: Cross multiply
    110,905.07x = 153,054.56 × 67,871.05
  4. Step 4: Simplify right side
    110,905.07x = 10,387,973,481.53
  5. Step 5: Solve for x
    x = 10,387,973,481.53/110,905.07
  6. Step 6: Final answer
    x = 93,665.46

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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.