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Finding the Fourth Proportional to 156,627.43, 216,140.37 and 85,006.01

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Solution

The fourth proportional to 156,627.43, 216,140.37 and 85,006.01 is: 117,305.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,627.43 : 216,140.37 = 85,006.01 : x
  2. Step 2: Convert to fraction form
    156,627.43/216,140.37 = 85,006.01/x
  3. Step 3: Cross multiply
    156,627.43x = 216,140.37 × 85,006.01
  4. Step 4: Simplify right side
    156,627.43x = 18,373,230,675.20
  5. Step 5: Solve for x
    x = 18,373,230,675.20/156,627.43
  6. Step 6: Final answer
    x = 117,305.32

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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.