Home / 131,918.40-197,738.16-43,148.16

Finding the Fourth Proportional to 131,918.40, 197,738.16 and 43,148.16

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Solution

The fourth proportional to 131,918.40, 197,738.16 and 43,148.16 is: 64,676.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,918.40 : 197,738.16 = 43,148.16 : x
  2. Step 2: Convert to fraction form
    131,918.40/197,738.16 = 43,148.16/x
  3. Step 3: Cross multiply
    131,918.40x = 197,738.16 × 43,148.16
  4. Step 4: Simplify right side
    131,918.40x = 8,532,037,765.79
  5. Step 5: Solve for x
    x = 8,532,037,765.79/131,918.40
  6. Step 6: Final answer
    x = 64,676.63

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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.