Home / 171,309.12-257,029.92-66,098.88

Finding the Fourth Proportional to 171,309.12, 257,029.92 and 66,098.88

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Solution

The fourth proportional to 171,309.12, 257,029.92 and 66,098.88 is: 99,173.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,309.12 : 257,029.92 = 66,098.88 : x
  2. Step 2: Convert to fraction form
    171,309.12/257,029.92 = 66,098.88/x
  3. Step 3: Cross multiply
    171,309.12x = 257,029.92 × 66,098.88
  4. Step 4: Simplify right side
    171,309.12x = 16,989,389,838.49
  5. Step 5: Solve for x
    x = 16,989,389,838.49/171,309.12
  6. Step 6: Final answer
    x = 99,173.88

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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.