Home / 136,442.94-188,305.10-76,023.42

Finding the Fourth Proportional to 136,442.94, 188,305.10 and 76,023.42

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Solution

The fourth proportional to 136,442.94, 188,305.10 and 76,023.42 is: 104,920.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,442.94 : 188,305.10 = 76,023.42 : x
  2. Step 2: Convert to fraction form
    136,442.94/188,305.10 = 76,023.42/x
  3. Step 3: Cross multiply
    136,442.94x = 188,305.10 × 76,023.42
  4. Step 4: Simplify right side
    136,442.94x = 14,315,597,705.44
  5. Step 5: Solve for x
    x = 14,315,597,705.44/136,442.94
  6. Step 6: Final answer
    x = 104,920.03

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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.