Home / 131,524.29-181,514.58-80,536.77

Finding the Fourth Proportional to 131,524.29, 181,514.58 and 80,536.77

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Solution

The fourth proportional to 131,524.29, 181,514.58 and 80,536.77 is: 111,147.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,524.29 : 181,514.58 = 80,536.77 : x
  2. Step 2: Convert to fraction form
    131,524.29/181,514.58 = 80,536.77/x
  3. Step 3: Cross multiply
    131,524.29x = 181,514.58 × 80,536.77
  4. Step 4: Simplify right side
    131,524.29x = 14,618,597,981.11
  5. Step 5: Solve for x
    x = 14,618,597,981.11/131,524.29
  6. Step 6: Final answer
    x = 111,147.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.