Home / 140,407.09-193,761.48-79,977.71

Finding the Fourth Proportional to 140,407.09, 193,761.48 and 79,977.71

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Solution

The fourth proportional to 140,407.09, 193,761.48 and 79,977.71 is: 110,369.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,407.09 : 193,761.48 = 79,977.71 : x
  2. Step 2: Convert to fraction form
    140,407.09/193,761.48 = 79,977.71/x
  3. Step 3: Cross multiply
    140,407.09x = 193,761.48 × 79,977.71
  4. Step 4: Simplify right side
    140,407.09x = 15,496,599,456.61
  5. Step 5: Solve for x
    x = 15,496,599,456.61/140,407.09
  6. Step 6: Final answer
    x = 110,369.07

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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.