Home / 211,975.20-317,865.60-93,585.60

Finding the Fourth Proportional to 211,975.20, 317,865.60 and 93,585.60

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Solution

The fourth proportional to 211,975.20, 317,865.60 and 93,585.60 is: 140,335.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,975.20 : 317,865.60 = 93,585.60 : x
  2. Step 2: Convert to fraction form
    211,975.20/317,865.60 = 93,585.60/x
  3. Step 3: Cross multiply
    211,975.20x = 317,865.60 × 93,585.60
  4. Step 4: Simplify right side
    211,975.20x = 29,747,642,895.36
  5. Step 5: Solve for x
    x = 29,747,642,895.36/211,975.20
  6. Step 6: Final answer
    x = 140,335.49

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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.