Home / 136,930.20-188,944.98-76,493.37

Finding the Fourth Proportional to 136,930.20, 188,944.98 and 76,493.37

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Solution

The fourth proportional to 136,930.20, 188,944.98 and 76,493.37 is: 105,550.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,930.20 : 188,944.98 = 76,493.37 : x
  2. Step 2: Convert to fraction form
    136,930.20/188,944.98 = 76,493.37/x
  3. Step 3: Cross multiply
    136,930.20x = 188,944.98 × 76,493.37
  4. Step 4: Simplify right side
    136,930.20x = 14,453,038,264.78
  5. Step 5: Solve for x
    x = 14,453,038,264.78/136,930.20
  6. Step 6: Final answer
    x = 105,550.41

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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.