Home / 131,759.37-197,638.40-31,919.57

Finding the Fourth Proportional to 131,759.37, 197,638.40 and 31,919.57

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Solution

The fourth proportional to 131,759.37, 197,638.40 and 31,919.57 is: 47,879.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,759.37 : 197,638.40 = 31,919.57 : x
  2. Step 2: Convert to fraction form
    131,759.37/197,638.40 = 31,919.57/x
  3. Step 3: Cross multiply
    131,759.37x = 197,638.40 × 31,919.57
  4. Step 4: Simplify right side
    131,759.37x = 6,308,533,317.38
  5. Step 5: Solve for x
    x = 6,308,533,317.38/131,759.37
  6. Step 6: Final answer
    x = 47,879.20

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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.