Home / 182,143.90-273,215.85-128,999.80

Finding the Fourth Proportional to 182,143.90, 273,215.85 and 128,999.80

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Solution

The fourth proportional to 182,143.90, 273,215.85 and 128,999.80 is: 193,499.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    182,143.90 : 273,215.85 = 128,999.80 : x
  2. Step 2: Convert to fraction form
    182,143.90/273,215.85 = 128,999.80/x
  3. Step 3: Cross multiply
    182,143.90x = 273,215.85 × 128,999.80
  4. Step 4: Simplify right side
    182,143.90x = 35,244,790,006.83
  5. Step 5: Solve for x
    x = 35,244,790,006.83/182,143.90
  6. Step 6: Final answer
    x = 193,499.70

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Similar ratio
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1.5x scale

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.