Home / 129,587.50-194,322.24-54,666.80

Finding the Fourth Proportional to 129,587.50, 194,322.24 and 54,666.80

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Solution

The fourth proportional to 129,587.50, 194,322.24 and 54,666.80 is: 81,975.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,587.50 : 194,322.24 = 54,666.80 : x
  2. Step 2: Convert to fraction form
    129,587.50/194,322.24 = 54,666.80/x
  3. Step 3: Cross multiply
    129,587.50x = 194,322.24 × 54,666.80
  4. Step 4: Simplify right side
    129,587.50x = 10,622,974,786.73
  5. Step 5: Solve for x
    x = 10,622,974,786.73/129,587.50
  6. Step 6: Final answer
    x = 81,975.31

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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.