Home / 136,498.34-188,367.90-76,067.66

Finding the Fourth Proportional to 136,498.34, 188,367.90 and 76,067.66

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Solution

The fourth proportional to 136,498.34, 188,367.90 and 76,067.66 is: 104,973.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,498.34 : 188,367.90 = 76,067.66 : x
  2. Step 2: Convert to fraction form
    136,498.34/188,367.90 = 76,067.66/x
  3. Step 3: Cross multiply
    136,498.34x = 188,367.90 × 76,067.66
  4. Step 4: Simplify right side
    136,498.34x = 14,328,705,372.11
  5. Step 5: Solve for x
    x = 14,328,705,372.11/136,498.34
  6. Step 6: Final answer
    x = 104,973.48

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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.