Home / 174,308.70-261,635.85-85,662.30

Finding the Fourth Proportional to 174,308.70, 261,635.85 and 85,662.30

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Solution

The fourth proportional to 174,308.70, 261,635.85 and 85,662.30 is: 128,578.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,308.70 : 261,635.85 = 85,662.30 : x
  2. Step 2: Convert to fraction form
    174,308.70/261,635.85 = 85,662.30/x
  3. Step 3: Cross multiply
    174,308.70x = 261,635.85 × 85,662.30
  4. Step 4: Simplify right side
    174,308.70x = 22,412,328,673.46
  5. Step 5: Solve for x
    x = 22,412,328,673.46/174,308.70
  6. Step 6: Final answer
    x = 128,578.37

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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.