Home / 136,624.38-188,542.45-76,197.57

Finding the Fourth Proportional to 136,624.38, 188,542.45 and 76,197.57

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Solution

The fourth proportional to 136,624.38, 188,542.45 and 76,197.57 is: 105,153.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,624.38 : 188,542.45 = 76,197.57 : x
  2. Step 2: Convert to fraction form
    136,624.38/188,542.45 = 76,197.57/x
  3. Step 3: Cross multiply
    136,624.38x = 188,542.45 × 76,197.57
  4. Step 4: Simplify right side
    136,624.38x = 14,366,476,531.85
  5. Step 5: Solve for x
    x = 14,366,476,531.85/136,624.38
  6. Step 6: Final answer
    x = 105,153.10

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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.