Home / 112,492.44-155,367.18-76,620.24

Finding the Fourth Proportional to 112,492.44, 155,367.18 and 76,620.24

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Solution

The fourth proportional to 112,492.44, 155,367.18 and 76,620.24 is: 105,822.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,492.44 : 155,367.18 = 76,620.24 : x
  2. Step 2: Convert to fraction form
    112,492.44/155,367.18 = 76,620.24/x
  3. Step 3: Cross multiply
    112,492.44x = 155,367.18 × 76,620.24
  4. Step 4: Simplify right side
    112,492.44x = 11,904,270,619.72
  5. Step 5: Solve for x
    x = 11,904,270,619.72/112,492.44
  6. Step 6: Final answer
    x = 105,822.85

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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.