Home / 131,758.27-197,636.69-31,918.41

Finding the Fourth Proportional to 131,758.27, 197,636.69 and 31,918.41

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Solution

The fourth proportional to 131,758.27, 197,636.69 and 31,918.41 is: 47,877.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,758.27 : 197,636.69 = 31,918.41 : x
  2. Step 2: Convert to fraction form
    131,758.27/197,636.69 = 31,918.41/x
  3. Step 3: Cross multiply
    131,758.27x = 197,636.69 × 31,918.41
  4. Step 4: Simplify right side
    131,758.27x = 6,308,248,982.26
  5. Step 5: Solve for x
    x = 6,308,248,982.26/131,758.27
  6. Step 6: Final answer
    x = 47,877.44

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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.