Home / 133,102.39-183,676.04-72,675.58

Finding the Fourth Proportional to 133,102.39, 183,676.04 and 72,675.58

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Solution

The fourth proportional to 133,102.39, 183,676.04 and 72,675.58 is: 100,289.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,102.39 : 183,676.04 = 72,675.58 : x
  2. Step 2: Convert to fraction form
    133,102.39/183,676.04 = 72,675.58/x
  3. Step 3: Cross multiply
    133,102.39x = 183,676.04 × 72,675.58
  4. Step 4: Simplify right side
    133,102.39x = 13,348,761,820.72
  5. Step 5: Solve for x
    x = 13,348,761,820.72/133,102.39
  6. Step 6: Final answer
    x = 100,289.43

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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.