Home / 171,311.76-236,393.60-99,701.28

Finding the Fourth Proportional to 171,311.76, 236,393.60 and 99,701.28

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Solution

The fourth proportional to 171,311.76, 236,393.60 and 99,701.28 is: 137,578.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,311.76 : 236,393.60 = 99,701.28 : x
  2. Step 2: Convert to fraction form
    171,311.76/236,393.60 = 99,701.28/x
  3. Step 3: Cross multiply
    171,311.76x = 236,393.60 × 99,701.28
  4. Step 4: Simplify right side
    171,311.76x = 23,568,744,503.81
  5. Step 5: Solve for x
    x = 23,568,744,503.81/171,311.76
  6. Step 6: Final answer
    x = 137,578.09

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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.