Home / 171,966.30-257,949.45-129,975.90

Finding the Fourth Proportional to 171,966.30, 257,949.45 and 129,975.90

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Solution

The fourth proportional to 171,966.30, 257,949.45 and 129,975.90 is: 194,963.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,966.30 : 257,949.45 = 129,975.90 : x
  2. Step 2: Convert to fraction form
    171,966.30/257,949.45 = 129,975.90/x
  3. Step 3: Cross multiply
    171,966.30x = 257,949.45 × 129,975.90
  4. Step 4: Simplify right side
    171,966.30x = 33,527,211,918.26
  5. Step 5: Solve for x
    x = 33,527,211,918.26/171,966.30
  6. Step 6: Final answer
    x = 194,963.85

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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.