Home / 140,486.45-193,872.83-76,822.88

Finding the Fourth Proportional to 140,486.45, 193,872.83 and 76,822.88

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Solution

The fourth proportional to 140,486.45, 193,872.83 and 76,822.88 is: 106,016.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,486.45 : 193,872.83 = 76,822.88 : x
  2. Step 2: Convert to fraction form
    140,486.45/193,872.83 = 76,822.88/x
  3. Step 3: Cross multiply
    140,486.45x = 193,872.83 × 76,822.88
  4. Step 4: Simplify right side
    140,486.45x = 14,893,867,800.87
  5. Step 5: Solve for x
    x = 14,893,867,800.87/140,486.45
  6. Step 6: Final answer
    x = 106,016.40

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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.