Home / 156,620.40-234,930.60-56,783.85

Finding the Fourth Proportional to 156,620.40, 234,930.60 and 56,783.85

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Solution

The fourth proportional to 156,620.40, 234,930.60 and 56,783.85 is: 85,175.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,620.40 : 234,930.60 = 56,783.85 : x
  2. Step 2: Convert to fraction form
    156,620.40/234,930.60 = 56,783.85/x
  3. Step 3: Cross multiply
    156,620.40x = 234,930.60 × 56,783.85
  4. Step 4: Simplify right side
    156,620.40x = 13,340,263,950.81
  5. Step 5: Solve for x
    x = 13,340,263,950.81/156,620.40
  6. Step 6: Final answer
    x = 85,175.78

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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.