Home / 129,930.51-194,908.50-54,013.35

Finding the Fourth Proportional to 129,930.51, 194,908.50 and 54,013.35

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Solution

The fourth proportional to 129,930.51, 194,908.50 and 54,013.35 is: 81,025.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,930.51 : 194,908.50 = 54,013.35 : x
  2. Step 2: Convert to fraction form
    129,930.51/194,908.50 = 54,013.35/x
  3. Step 3: Cross multiply
    129,930.51x = 194,908.50 × 54,013.35
  4. Step 4: Simplify right side
    129,930.51x = 10,527,661,028.48
  5. Step 5: Solve for x
    x = 10,527,661,028.48/129,930.51
  6. Step 6: Final answer
    x = 81,025.32

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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.