Home / 117,787.44-162,531.96-79,630.02

Finding the Fourth Proportional to 117,787.44, 162,531.96 and 79,630.02

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Solution

The fourth proportional to 117,787.44, 162,531.96 and 79,630.02 is: 109,879.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,787.44 : 162,531.96 = 79,630.02 : x
  2. Step 2: Convert to fraction form
    117,787.44/162,531.96 = 79,630.02/x
  3. Step 3: Cross multiply
    117,787.44x = 162,531.96 × 79,630.02
  4. Step 4: Simplify right side
    117,787.44x = 12,942,423,225.44
  5. Step 5: Solve for x
    x = 12,942,423,225.44/117,787.44
  6. Step 6: Final answer
    x = 109,879.48

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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.