Home / 186,058.40-279,087.60-111,408.80

Finding the Fourth Proportional to 186,058.40, 279,087.60 and 111,408.80

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Solution

The fourth proportional to 186,058.40, 279,087.60 and 111,408.80 is: 167,113.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,058.40 : 279,087.60 = 111,408.80 : x
  2. Step 2: Convert to fraction form
    186,058.40/279,087.60 = 111,408.80/x
  3. Step 3: Cross multiply
    186,058.40x = 279,087.60 × 111,408.80
  4. Step 4: Simplify right side
    186,058.40x = 31,092,814,610.88
  5. Step 5: Solve for x
    x = 31,092,814,610.88/186,058.40
  6. Step 6: Final answer
    x = 167,113.20

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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.