Home / 212,633.40-318,512.70-107,511.60

Finding the Fourth Proportional to 212,633.40, 318,512.70 and 107,511.60

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Solution

The fourth proportional to 212,633.40, 318,512.70 and 107,511.60 is: 161,046.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,633.40 : 318,512.70 = 107,511.60 : x
  2. Step 2: Convert to fraction form
    212,633.40/318,512.70 = 107,511.60/x
  3. Step 3: Cross multiply
    212,633.40x = 318,512.70 × 107,511.60
  4. Step 4: Simplify right side
    212,633.40x = 34,243,809,997.32
  5. Step 5: Solve for x
    x = 34,243,809,997.32/212,633.40
  6. Step 6: Final answer
    x = 161,046.24

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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.