Home / 131,784.27-197,674.65-31,945.36

Finding the Fourth Proportional to 131,784.27, 197,674.65 and 31,945.36

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Solution

The fourth proportional to 131,784.27, 197,674.65 and 31,945.36 is: 47,917.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,784.27 : 197,674.65 = 31,945.36 : x
  2. Step 2: Convert to fraction form
    131,784.27/197,674.65 = 31,945.36/x
  3. Step 3: Cross multiply
    131,784.27x = 197,674.65 × 31,945.36
  4. Step 4: Simplify right side
    131,784.27x = 6,314,787,857.12
  5. Step 5: Solve for x
    x = 6,314,787,857.12/131,784.27
  6. Step 6: Final answer
    x = 47,917.61

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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.