Home / 156,650.52-216,171.48-85,028.70

Finding the Fourth Proportional to 156,650.52, 216,171.48 and 85,028.70

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Solution

The fourth proportional to 156,650.52, 216,171.48 and 85,028.70 is: 117,336.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,650.52 : 216,171.48 = 85,028.70 : x
  2. Step 2: Convert to fraction form
    156,650.52/216,171.48 = 85,028.70/x
  3. Step 3: Cross multiply
    156,650.52x = 216,171.48 × 85,028.70
  4. Step 4: Simplify right side
    156,650.52x = 18,380,779,921.48
  5. Step 5: Solve for x
    x = 18,380,779,921.48/156,650.52
  6. Step 6: Final answer
    x = 117,336.22

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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.