Home / 129,975.88-194,935.80-75,904.48

Finding the Fourth Proportional to 129,975.88, 194,935.80 and 75,904.48

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Solution

The fourth proportional to 129,975.88, 194,935.80 and 75,904.48 is: 113,840.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,975.88 : 194,935.80 = 75,904.48 : x
  2. Step 2: Convert to fraction form
    129,975.88/194,935.80 = 75,904.48/x
  3. Step 3: Cross multiply
    129,975.88x = 194,935.80 × 75,904.48
  4. Step 4: Simplify right side
    129,975.88x = 14,796,500,532.38
  5. Step 5: Solve for x
    x = 14,796,500,532.38/129,975.88
  6. Step 6: Final answer
    x = 113,840.36

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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.