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Finding the Fourth Proportional to 147,857.06, 204,042.93 and 80,789.06

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Solution

The fourth proportional to 147,857.06, 204,042.93 and 80,789.06 is: 111,489.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,857.06 : 204,042.93 = 80,789.06 : x
  2. Step 2: Convert to fraction form
    147,857.06/204,042.93 = 80,789.06/x
  3. Step 3: Cross multiply
    147,857.06x = 204,042.93 × 80,789.06
  4. Step 4: Simplify right side
    147,857.06x = 16,484,436,514.35
  5. Step 5: Solve for x
    x = 16,484,436,514.35/147,857.06
  6. Step 6: Final answer
    x = 111,489.01

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1.5x scale

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.