Home / 115,195.76-159,031.82-80,846.19

Finding the Fourth Proportional to 115,195.76, 159,031.82 and 80,846.19

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Solution

The fourth proportional to 115,195.76, 159,031.82 and 80,846.19 is: 111,611.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,195.76 : 159,031.82 = 80,846.19 : x
  2. Step 2: Convert to fraction form
    115,195.76/159,031.82 = 80,846.19/x
  3. Step 3: Cross multiply
    115,195.76x = 159,031.82 × 80,846.19
  4. Step 4: Simplify right side
    115,195.76x = 12,857,116,735.77
  5. Step 5: Solve for x
    x = 12,857,116,735.77/115,195.76
  6. Step 6: Final answer
    x = 111,611.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.