Home / 211,740.60-317,610.90-113,436.60

Finding the Fourth Proportional to 211,740.60, 317,610.90 and 113,436.60

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Solution

The fourth proportional to 211,740.60, 317,610.90 and 113,436.60 is: 170,154.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,740.60 : 317,610.90 = 113,436.60 : x
  2. Step 2: Convert to fraction form
    211,740.60/317,610.90 = 113,436.60/x
  3. Step 3: Cross multiply
    211,740.60x = 317,610.90 × 113,436.60
  4. Step 4: Simplify right side
    211,740.60x = 36,028,700,618.94
  5. Step 5: Solve for x
    x = 36,028,700,618.94/211,740.60
  6. Step 6: Final answer
    x = 170,154.90

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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.