Home / 127,281.72-175,727.70-82,037.64

Finding the Fourth Proportional to 127,281.72, 175,727.70 and 82,037.64

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Solution

The fourth proportional to 127,281.72, 175,727.70 and 82,037.64 is: 113,262.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,281.72 : 175,727.70 = 82,037.64 : x
  2. Step 2: Convert to fraction form
    127,281.72/175,727.70 = 82,037.64/x
  3. Step 3: Cross multiply
    127,281.72x = 175,727.70 × 82,037.64
  4. Step 4: Simplify right side
    127,281.72x = 14,416,285,790.63
  5. Step 5: Solve for x
    x = 14,416,285,790.63/127,281.72
  6. Step 6: Final answer
    x = 113,262.81

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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.