Home / 136,518.41-188,392.23-79,167.98

Finding the Fourth Proportional to 136,518.41, 188,392.23 and 79,167.98

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Solution

The fourth proportional to 136,518.41, 188,392.23 and 79,167.98 is: 109,249.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,518.41 : 188,392.23 = 79,167.98 : x
  2. Step 2: Convert to fraction form
    136,518.41/188,392.23 = 79,167.98/x
  3. Step 3: Cross multiply
    136,518.41x = 188,392.23 × 79,167.98
  4. Step 4: Simplify right side
    136,518.41x = 14,914,632,767.78
  5. Step 5: Solve for x
    x = 14,914,632,767.78/136,518.41
  6. Step 6: Final answer
    x = 109,249.97

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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.