Home / 131,758.54-197,638.31-31,918.55

Finding the Fourth Proportional to 131,758.54, 197,638.31 and 31,918.55

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Solution

The fourth proportional to 131,758.54, 197,638.31 and 31,918.55 is: 47,877.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,758.54 : 197,638.31 = 31,918.55 : x
  2. Step 2: Convert to fraction form
    131,758.54/197,638.31 = 31,918.55/x
  3. Step 3: Cross multiply
    131,758.54x = 197,638.31 × 31,918.55
  4. Step 4: Simplify right side
    131,758.54x = 6,308,327,371.26
  5. Step 5: Solve for x
    x = 6,308,327,371.26/131,758.54
  6. Step 6: Final answer
    x = 47,877.94

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1.5x scale

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.