Home / 136,285.97-188,065.26-85,296.56

Finding the Fourth Proportional to 136,285.97, 188,065.26 and 85,296.56

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Solution

The fourth proportional to 136,285.97, 188,065.26 and 85,296.56 is: 117,703.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,285.97 : 188,065.26 = 85,296.56 : x
  2. Step 2: Convert to fraction form
    136,285.97/188,065.26 = 85,296.56/x
  3. Step 3: Cross multiply
    136,285.97x = 188,065.26 × 85,296.56
  4. Step 4: Simplify right side
    136,285.97x = 16,041,318,793.18
  5. Step 5: Solve for x
    x = 16,041,318,793.18/136,285.97
  6. Step 6: Final answer
    x = 117,703.38

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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.