Home / 194,996.96-292,514.64-81,121.40

Finding the Fourth Proportional to 194,996.96, 292,514.64 and 81,121.40

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Solution

The fourth proportional to 194,996.96, 292,514.64 and 81,121.40 is: 121,690.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,996.96 : 292,514.64 = 81,121.40 : x
  2. Step 2: Convert to fraction form
    194,996.96/292,514.64 = 81,121.40/x
  3. Step 3: Cross multiply
    194,996.96x = 292,514.64 × 81,121.40
  4. Step 4: Simplify right side
    194,996.96x = 23,729,197,117.30
  5. Step 5: Solve for x
    x = 23,729,197,117.30/194,996.96
  6. Step 6: Final answer
    x = 121,690.09

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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.