Home / 136,924.20-188,936.70-76,487.37

Finding the Fourth Proportional to 136,924.20, 188,936.70 and 76,487.37

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Solution

The fourth proportional to 136,924.20, 188,936.70 and 76,487.37 is: 105,542.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,924.20 : 188,936.70 = 76,487.37 : x
  2. Step 2: Convert to fraction form
    136,924.20/188,936.70 = 76,487.37/x
  3. Step 3: Cross multiply
    136,924.20x = 188,936.70 × 76,487.37
  4. Step 4: Simplify right side
    136,924.20x = 14,451,271,279.48
  5. Step 5: Solve for x
    x = 14,451,271,279.48/136,924.20
  6. Step 6: Final answer
    x = 105,542.13

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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.