Home / 129,975.30-179,269.88-82,182.60

Finding the Fourth Proportional to 129,975.30, 179,269.88 and 82,182.60

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Solution

The fourth proportional to 129,975.30, 179,269.88 and 82,182.60 is: 113,351.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,975.30 : 179,269.88 = 82,182.60 : x
  2. Step 2: Convert to fraction form
    129,975.30/179,269.88 = 82,182.60/x
  3. Step 3: Cross multiply
    129,975.30x = 179,269.88 × 82,182.60
  4. Step 4: Simplify right side
    129,975.30x = 14,732,864,429.18
  5. Step 5: Solve for x
    x = 14,732,864,429.18/129,975.30
  6. Step 6: Final answer
    x = 113,351.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.