Home / 170,996.36-256,498.86-81,017.96

Finding the Fourth Proportional to 170,996.36, 256,498.86 and 81,017.96

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Solution

The fourth proportional to 170,996.36, 256,498.86 and 81,017.96 is: 121,528.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,996.36 : 256,498.86 = 81,017.96 : x
  2. Step 2: Convert to fraction form
    170,996.36/256,498.86 = 81,017.96/x
  3. Step 3: Cross multiply
    170,996.36x = 256,498.86 × 81,017.96
  4. Step 4: Simplify right side
    170,996.36x = 20,781,014,379.53
  5. Step 5: Solve for x
    x = 20,781,014,379.53/170,996.36
  6. Step 6: Final answer
    x = 121,528.99

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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.