Home / 136,902.57-188,854.79-86,630.73

Finding the Fourth Proportional to 136,902.57, 188,854.79 and 86,630.73

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Solution

The fourth proportional to 136,902.57, 188,854.79 and 86,630.73 is: 119,505.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,902.57 : 188,854.79 = 86,630.73 : x
  2. Step 2: Convert to fraction form
    136,902.57/188,854.79 = 86,630.73/x
  3. Step 3: Cross multiply
    136,902.57x = 188,854.79 × 86,630.73
  4. Step 4: Simplify right side
    136,902.57x = 16,360,627,888.54
  5. Step 5: Solve for x
    x = 16,360,627,888.54/136,902.57
  6. Step 6: Final answer
    x = 119,505.63

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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.