Home / 136,186.68-187,950.06-79,606.56

Finding the Fourth Proportional to 136,186.68, 187,950.06 and 79,606.56

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Solution

The fourth proportional to 136,186.68, 187,950.06 and 79,606.56 is: 109,864.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,186.68 : 187,950.06 = 79,606.56 : x
  2. Step 2: Convert to fraction form
    136,186.68/187,950.06 = 79,606.56/x
  3. Step 3: Cross multiply
    136,186.68x = 187,950.06 × 79,606.56
  4. Step 4: Simplify right side
    136,186.68x = 14,962,057,728.39
  5. Step 5: Solve for x
    x = 14,962,057,728.39/136,186.68
  6. Step 6: Final answer
    x = 109,864.33

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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.