Home / 136,079.91-187,796.68-75,651.55

Finding the Fourth Proportional to 136,079.91, 187,796.68 and 75,651.55

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Solution

The fourth proportional to 136,079.91, 187,796.68 and 75,651.55 is: 104,402.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,079.91 : 187,796.68 = 75,651.55 : x
  2. Step 2: Convert to fraction form
    136,079.91/187,796.68 = 75,651.55/x
  3. Step 3: Cross multiply
    136,079.91x = 187,796.68 × 75,651.55
  4. Step 4: Simplify right side
    136,079.91x = 14,207,110,018.09
  5. Step 5: Solve for x
    x = 14,207,110,018.09/136,079.91
  6. Step 6: Final answer
    x = 104,402.70

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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.