Home / 120,746.36-180,883.92-79,067

Finding the Fourth Proportional to 120,746.36, 180,883.92 and 79,067

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Solution

The fourth proportional to 120,746.36, 180,883.92 and 79,067 is: 118,446.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,746.36 : 180,883.92 = 79,067 : x
  2. Step 2: Convert to fraction form
    120,746.36/180,883.92 = 79,067/x
  3. Step 3: Cross multiply
    120,746.36x = 180,883.92 × 79,067
  4. Step 4: Simplify right side
    120,746.36x = 14,301,948,902.64
  5. Step 5: Solve for x
    x = 14,301,948,902.64/120,746.36
  6. Step 6: Final answer
    x = 118,446.21

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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.