Home / 131,811.18-197,716.05-31,971.18

Finding the Fourth Proportional to 131,811.18, 197,716.05 and 31,971.18

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Solution

The fourth proportional to 131,811.18, 197,716.05 and 31,971.18 is: 47,956.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,811.18 : 197,716.05 = 31,971.18 : x
  2. Step 2: Convert to fraction form
    131,811.18/197,716.05 = 31,971.18/x
  3. Step 3: Cross multiply
    131,811.18x = 197,716.05 × 31,971.18
  4. Step 4: Simplify right side
    131,811.18x = 6,321,215,423.44
  5. Step 5: Solve for x
    x = 6,321,215,423.44/131,811.18
  6. Step 6: Final answer
    x = 47,956.60

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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.