Home / 156,696.58-216,241.27-85,076.61

Finding the Fourth Proportional to 156,696.58, 216,241.27 and 85,076.61

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Solution

The fourth proportional to 156,696.58, 216,241.27 and 85,076.61 is: 117,405.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,696.58 : 216,241.27 = 85,076.61 : x
  2. Step 2: Convert to fraction form
    156,696.58/216,241.27 = 85,076.61/x
  3. Step 3: Cross multiply
    156,696.58x = 216,241.27 × 85,076.61
  4. Step 4: Simplify right side
    156,696.58x = 18,397,073,981.00
  5. Step 5: Solve for x
    x = 18,397,073,981.00/156,696.58
  6. Step 6: Final answer
    x = 117,405.72

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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.