Home / 129,761.68-194,632.80-36,274.72

Finding the Fourth Proportional to 129,761.68, 194,632.80 and 36,274.72

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Solution

The fourth proportional to 129,761.68, 194,632.80 and 36,274.72 is: 54,409.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,761.68 : 194,632.80 = 36,274.72 : x
  2. Step 2: Convert to fraction form
    129,761.68/194,632.80 = 36,274.72/x
  3. Step 3: Cross multiply
    129,761.68x = 194,632.80 × 36,274.72
  4. Step 4: Simplify right side
    129,761.68x = 7,060,250,322.82
  5. Step 5: Solve for x
    x = 7,060,250,322.82/129,761.68
  6. Step 6: Final answer
    x = 54,409.36

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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.