Home / 140,013.56-193,218.72-76,351.82

Finding the Fourth Proportional to 140,013.56, 193,218.72 and 76,351.82

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Solution

The fourth proportional to 140,013.56, 193,218.72 and 76,351.82 is: 105,365.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,013.56 : 193,218.72 = 76,351.82 : x
  2. Step 2: Convert to fraction form
    140,013.56/193,218.72 = 76,351.82/x
  3. Step 3: Cross multiply
    140,013.56x = 193,218.72 × 76,351.82
  4. Step 4: Simplify right side
    140,013.56x = 14,752,599,677.66
  5. Step 5: Solve for x
    x = 14,752,599,677.66/140,013.56
  6. Step 6: Final answer
    x = 105,365.50

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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.