Home / 134,512.65-185,613.72-82,821.54

Finding the Fourth Proportional to 134,512.65, 185,613.72 and 82,821.54

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Solution

The fourth proportional to 134,512.65, 185,613.72 and 82,821.54 is: 114,285.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,512.65 : 185,613.72 = 82,821.54 : x
  2. Step 2: Convert to fraction form
    134,512.65/185,613.72 = 82,821.54/x
  3. Step 3: Cross multiply
    134,512.65x = 185,613.72 × 82,821.54
  4. Step 4: Simplify right side
    134,512.65x = 15,372,814,733.91
  5. Step 5: Solve for x
    x = 15,372,814,733.91/134,512.65
  6. Step 6: Final answer
    x = 114,285.27

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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.