Home / 140,514.13-193,905.39-76,850.56

Finding the Fourth Proportional to 140,514.13, 193,905.39 and 76,850.56

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Solution

The fourth proportional to 140,514.13, 193,905.39 and 76,850.56 is: 106,051.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,514.13 : 193,905.39 = 76,850.56 : x
  2. Step 2: Convert to fraction form
    140,514.13/193,905.39 = 76,850.56/x
  3. Step 3: Cross multiply
    140,514.13x = 193,905.39 × 76,850.56
  4. Step 4: Simplify right side
    140,514.13x = 14,901,737,808.52
  5. Step 5: Solve for x
    x = 14,901,737,808.52/140,514.13
  6. Step 6: Final answer
    x = 106,051.53

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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.