Home / 136,408.47-188,253.15-82,695.75

Finding the Fourth Proportional to 136,408.47, 188,253.15 and 82,695.75

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Solution

The fourth proportional to 136,408.47, 188,253.15 and 82,695.75 is: 114,125.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,408.47 : 188,253.15 = 82,695.75 : x
  2. Step 2: Convert to fraction form
    136,408.47/188,253.15 = 82,695.75/x
  3. Step 3: Cross multiply
    136,408.47x = 188,253.15 × 82,695.75
  4. Step 4: Simplify right side
    136,408.47x = 15,567,735,015.63
  5. Step 5: Solve for x
    x = 15,567,735,015.63/136,408.47
  6. Step 6: Final answer
    x = 114,125.87

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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.