Home / 136,654.26-188,591.33-75,400.15

Finding the Fourth Proportional to 136,654.26, 188,591.33 and 75,400.15

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Solution

The fourth proportional to 136,654.26, 188,591.33 and 75,400.15 is: 104,056.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,654.26 : 188,591.33 = 75,400.15 : x
  2. Step 2: Convert to fraction form
    136,654.26/188,591.33 = 75,400.15/x
  3. Step 3: Cross multiply
    136,654.26x = 188,591.33 × 75,400.15
  4. Step 4: Simplify right side
    136,654.26x = 14,219,814,570.70
  5. Step 5: Solve for x
    x = 14,219,814,570.70/136,654.26
  6. Step 6: Final answer
    x = 104,056.87

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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.