Home / 117,784.06-162,546.26-67,492.78

Finding the Fourth Proportional to 117,784.06, 162,546.26 and 67,492.78

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Solution

The fourth proportional to 117,784.06, 162,546.26 and 67,492.78 is: 93,142.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,784.06 : 162,546.26 = 67,492.78 : x
  2. Step 2: Convert to fraction form
    117,784.06/162,546.26 = 67,492.78/x
  3. Step 3: Cross multiply
    117,784.06x = 162,546.26 × 67,492.78
  4. Step 4: Simplify right side
    117,784.06x = 10,970,698,222.17
  5. Step 5: Solve for x
    x = 10,970,698,222.17/117,784.06
  6. Step 6: Final answer
    x = 93,142.47

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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.