Home / 139,936.34-193,110.66-76,272.76

Finding the Fourth Proportional to 139,936.34, 193,110.66 and 76,272.76

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Solution

The fourth proportional to 139,936.34, 193,110.66 and 76,272.76 is: 105,255.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,936.34 : 193,110.66 = 76,272.76 : x
  2. Step 2: Convert to fraction form
    139,936.34/193,110.66 = 76,272.76/x
  3. Step 3: Cross multiply
    139,936.34x = 193,110.66 × 76,272.76
  4. Step 4: Simplify right side
    139,936.34x = 14,729,083,023.62
  5. Step 5: Solve for x
    x = 14,729,083,023.62/139,936.34
  6. Step 6: Final answer
    x = 105,255.60

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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.