Home / 136,627.68-188,545.80-76,198.40

Finding the Fourth Proportional to 136,627.68, 188,545.80 and 76,198.40

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Solution

The fourth proportional to 136,627.68, 188,545.80 and 76,198.40 is: 105,153.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,627.68 : 188,545.80 = 76,198.40 : x
  2. Step 2: Convert to fraction form
    136,627.68/188,545.80 = 76,198.40/x
  3. Step 3: Cross multiply
    136,627.68x = 188,545.80 × 76,198.40
  4. Step 4: Simplify right side
    136,627.68x = 14,366,888,286.72
  5. Step 5: Solve for x
    x = 14,366,888,286.72/136,627.68
  6. Step 6: Final answer
    x = 105,153.57

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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.