Home / 136,174.05-187,925.54-82,428.66

Finding the Fourth Proportional to 136,174.05, 187,925.54 and 82,428.66

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Solution

The fourth proportional to 136,174.05, 187,925.54 and 82,428.66 is: 113,754.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,174.05 : 187,925.54 = 82,428.66 : x
  2. Step 2: Convert to fraction form
    136,174.05/187,925.54 = 82,428.66/x
  3. Step 3: Cross multiply
    136,174.05x = 187,925.54 × 82,428.66
  4. Step 4: Simplify right side
    136,174.05x = 15,490,450,029.83
  5. Step 5: Solve for x
    x = 15,490,450,029.83/136,174.05
  6. Step 6: Final answer
    x = 113,754.79

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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.