Home / 129,731.72-194,597.58-100,192.64

Finding the Fourth Proportional to 129,731.72, 194,597.58 and 100,192.64

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Solution

The fourth proportional to 129,731.72, 194,597.58 and 100,192.64 is: 150,288.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,731.72 : 194,597.58 = 100,192.64 : x
  2. Step 2: Convert to fraction form
    129,731.72/194,597.58 = 100,192.64/x
  3. Step 3: Cross multiply
    129,731.72x = 194,597.58 × 100,192.64
  4. Step 4: Simplify right side
    129,731.72x = 19,497,245,277.81
  5. Step 5: Solve for x
    x = 19,497,245,277.81/129,731.72
  6. Step 6: Final answer
    x = 150,288.96

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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.