Home / 136,623.38-188,541.07-76,196.57

Finding the Fourth Proportional to 136,623.38, 188,541.07 and 76,196.57

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Solution

The fourth proportional to 136,623.38, 188,541.07 and 76,196.57 is: 105,151.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,623.38 : 188,541.07 = 76,196.57 : x
  2. Step 2: Convert to fraction form
    136,623.38/188,541.07 = 76,196.57/x
  3. Step 3: Cross multiply
    136,623.38x = 188,541.07 × 76,196.57
  4. Step 4: Simplify right side
    136,623.38x = 14,366,181,704.93
  5. Step 5: Solve for x
    x = 14,366,181,704.93/136,623.38
  6. Step 6: Final answer
    x = 105,151.71

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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.