Home / 136,707.38-188,625.96-79,313.43

Finding the Fourth Proportional to 136,707.38, 188,625.96 and 79,313.43

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Solution

The fourth proportional to 136,707.38, 188,625.96 and 79,313.43 is: 109,435.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,707.38 : 188,625.96 = 79,313.43 : x
  2. Step 2: Convert to fraction form
    136,707.38/188,625.96 = 79,313.43/x
  3. Step 3: Cross multiply
    136,707.38x = 188,625.96 × 79,313.43
  4. Step 4: Simplify right side
    136,707.38x = 14,960,572,658.85
  5. Step 5: Solve for x
    x = 14,960,572,658.85/136,707.38
  6. Step 6: Final answer
    x = 109,435.01

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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.