Home / 156,099.70-234,149.20-120,612.58

Finding the Fourth Proportional to 156,099.70, 234,149.20 and 120,612.58

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Solution

The fourth proportional to 156,099.70, 234,149.20 and 120,612.58 is: 180,918.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,099.70 : 234,149.20 = 120,612.58 : x
  2. Step 2: Convert to fraction form
    156,099.70/234,149.20 = 120,612.58/x
  3. Step 3: Cross multiply
    156,099.70x = 234,149.20 × 120,612.58
  4. Step 4: Simplify right side
    156,099.70x = 28,241,339,116.94
  5. Step 5: Solve for x
    x = 28,241,339,116.94/156,099.70
  6. Step 6: Final answer
    x = 180,918.60

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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.