Home / 125,624.20-188,234.70-66,382.60

Finding the Fourth Proportional to 125,624.20, 188,234.70 and 66,382.60

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Solution

The fourth proportional to 125,624.20, 188,234.70 and 66,382.60 is: 99,467.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,624.20 : 188,234.70 = 66,382.60 : x
  2. Step 2: Convert to fraction form
    125,624.20/188,234.70 = 66,382.60/x
  3. Step 3: Cross multiply
    125,624.20x = 188,234.70 × 66,382.60
  4. Step 4: Simplify right side
    125,624.20x = 12,495,508,796.22
  5. Step 5: Solve for x
    x = 12,495,508,796.22/125,624.20
  6. Step 6: Final answer
    x = 99,467.37

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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.