Home / 171,228.50-236,353.62-99,668.64

Finding the Fourth Proportional to 171,228.50, 236,353.62 and 99,668.64

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Solution

The fourth proportional to 171,228.50, 236,353.62 and 99,668.64 is: 137,576.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,228.50 : 236,353.62 = 99,668.64 : x
  2. Step 2: Convert to fraction form
    171,228.50/236,353.62 = 99,668.64/x
  3. Step 3: Cross multiply
    171,228.50x = 236,353.62 × 99,668.64
  4. Step 4: Simplify right side
    171,228.50x = 23,557,043,864.48
  5. Step 5: Solve for x
    x = 23,557,043,864.48/171,228.50
  6. Step 6: Final answer
    x = 137,576.65

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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.