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Finding the Fourth Proportional to 156,792.96, 216,375.84 and 85,173.72

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Solution

The fourth proportional to 156,792.96, 216,375.84 and 85,173.72 is: 117,540.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,792.96 : 216,375.84 = 85,173.72 : x
  2. Step 2: Convert to fraction form
    156,792.96/216,375.84 = 85,173.72/x
  3. Step 3: Cross multiply
    156,792.96x = 216,375.84 × 85,173.72
  4. Step 4: Simplify right side
    156,792.96x = 18,429,535,210.92
  5. Step 5: Solve for x
    x = 18,429,535,210.92/156,792.96
  6. Step 6: Final answer
    x = 117,540.58

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.