Home / 136,928.70-188,959.23-76,495.50

Finding the Fourth Proportional to 136,928.70, 188,959.23 and 76,495.50

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Solution

The fourth proportional to 136,928.70, 188,959.23 and 76,495.50 is: 105,562.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,928.70 : 188,959.23 = 76,495.50 : x
  2. Step 2: Convert to fraction form
    136,928.70/188,959.23 = 76,495.50/x
  3. Step 3: Cross multiply
    136,928.70x = 188,959.23 × 76,495.50
  4. Step 4: Simplify right side
    136,928.70x = 14,454,530,778.47
  5. Step 5: Solve for x
    x = 14,454,530,778.47/136,928.70
  6. Step 6: Final answer
    x = 105,562.46

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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.