Home / 185,654.40-256,207.70-100,771.28

Finding the Fourth Proportional to 185,654.40, 256,207.70 and 100,771.28

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Solution

The fourth proportional to 185,654.40, 256,207.70 and 100,771.28 is: 139,066.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,654.40 : 256,207.70 = 100,771.28 : x
  2. Step 2: Convert to fraction form
    185,654.40/256,207.70 = 100,771.28/x
  3. Step 3: Cross multiply
    185,654.40x = 256,207.70 × 100,771.28
  4. Step 4: Simplify right side
    185,654.40x = 25,818,377,874.86
  5. Step 5: Solve for x
    x = 25,818,377,874.86/185,654.40
  6. Step 6: Final answer
    x = 139,066.88

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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.