Home / 156,173.67-234,015.21-120,721.86

Finding the Fourth Proportional to 156,173.67, 234,015.21 and 120,721.86

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Solution

The fourth proportional to 156,173.67, 234,015.21 and 120,721.86 is: 180,893.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,173.67 : 234,015.21 = 120,721.86 : x
  2. Step 2: Convert to fraction form
    156,173.67/234,015.21 = 120,721.86/x
  3. Step 3: Cross multiply
    156,173.67x = 234,015.21 × 120,721.86
  4. Step 4: Simplify right side
    156,173.67x = 28,250,751,419.49
  5. Step 5: Solve for x
    x = 28,250,751,419.49/156,173.67
  6. Step 6: Final answer
    x = 180,893.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.