Home / 113,764.25-170,513.50-85,593.80

Finding the Fourth Proportional to 113,764.25, 170,513.50 and 85,593.80

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Solution

The fourth proportional to 113,764.25, 170,513.50 and 85,593.80 is: 128,290.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,764.25 : 170,513.50 = 85,593.80 : x
  2. Step 2: Convert to fraction form
    113,764.25/170,513.50 = 85,593.80/x
  3. Step 3: Cross multiply
    113,764.25x = 170,513.50 × 85,593.80
  4. Step 4: Simplify right side
    113,764.25x = 14,594,898,416.30
  5. Step 5: Solve for x
    x = 14,594,898,416.30/113,764.25
  6. Step 6: Final answer
    x = 128,290.73

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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.