Home / 140,427.27-193,789.37-76,765.07

Finding the Fourth Proportional to 140,427.27, 193,789.37 and 76,765.07

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Solution

The fourth proportional to 140,427.27, 193,789.37 and 76,765.07 is: 105,935.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,427.27 : 193,789.37 = 76,765.07 : x
  2. Step 2: Convert to fraction form
    140,427.27/193,789.37 = 76,765.07/x
  3. Step 3: Cross multiply
    140,427.27x = 193,789.37 × 76,765.07
  4. Step 4: Simplify right side
    140,427.27x = 14,876,254,553.31
  5. Step 5: Solve for x
    x = 14,876,254,553.31/140,427.27
  6. Step 6: Final answer
    x = 105,935.65

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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.