Home / 136,883.24-188,845.86-80,273.96

Finding the Fourth Proportional to 136,883.24, 188,845.86 and 80,273.96

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Solution

The fourth proportional to 136,883.24, 188,845.86 and 80,273.96 is: 110,746.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,883.24 : 188,845.86 = 80,273.96 : x
  2. Step 2: Convert to fraction form
    136,883.24/188,845.86 = 80,273.96/x
  3. Step 3: Cross multiply
    136,883.24x = 188,845.86 × 80,273.96
  4. Step 4: Simplify right side
    136,883.24x = 15,159,405,011.81
  5. Step 5: Solve for x
    x = 15,159,405,011.81/136,883.24
  6. Step 6: Final answer
    x = 110,746.98

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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.