Home / 169,992.15-255,043.70-81,252.57

Finding the Fourth Proportional to 169,992.15, 255,043.70 and 81,252.57

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Solution

The fourth proportional to 169,992.15, 255,043.70 and 81,252.57 is: 121,905.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,992.15 : 255,043.70 = 81,252.57 : x
  2. Step 2: Convert to fraction form
    169,992.15/255,043.70 = 81,252.57/x
  3. Step 3: Cross multiply
    169,992.15x = 255,043.70 × 81,252.57
  4. Step 4: Simplify right side
    169,992.15x = 20,722,956,087.31
  5. Step 5: Solve for x
    x = 20,722,956,087.31/169,992.15
  6. Step 6: Final answer
    x = 121,905.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.