Home / 136,903.68-188,921.34-85,942.98

Finding the Fourth Proportional to 136,903.68, 188,921.34 and 85,942.98

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Solution

The fourth proportional to 136,903.68, 188,921.34 and 85,942.98 is: 118,597.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,903.68 : 188,921.34 = 85,942.98 : x
  2. Step 2: Convert to fraction form
    136,903.68/188,921.34 = 85,942.98/x
  3. Step 3: Cross multiply
    136,903.68x = 188,921.34 × 85,942.98
  4. Step 4: Simplify right side
    136,903.68x = 16,236,462,945.19
  5. Step 5: Solve for x
    x = 16,236,462,945.19/136,903.68
  6. Step 6: Final answer
    x = 118,597.71

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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.