Home / 140,305.43-193,625.75-76,647.33

Finding the Fourth Proportional to 140,305.43, 193,625.75 and 76,647.33

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Solution

The fourth proportional to 140,305.43, 193,625.75 and 76,647.33 is: 105,775.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,305.43 : 193,625.75 = 76,647.33 : x
  2. Step 2: Convert to fraction form
    140,305.43/193,625.75 = 76,647.33/x
  3. Step 3: Cross multiply
    140,305.43x = 193,625.75 × 76,647.33
  4. Step 4: Simplify right side
    140,305.43x = 14,840,896,948.37
  5. Step 5: Solve for x
    x = 14,840,896,948.37/140,305.43
  6. Step 6: Final answer
    x = 105,775.64

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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.