Home / 171,369.04-257,012.16-66,120.88

Finding the Fourth Proportional to 171,369.04, 257,012.16 and 66,120.88

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Solution

The fourth proportional to 171,369.04, 257,012.16 and 66,120.88 is: 99,165.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,369.04 : 257,012.16 = 66,120.88 : x
  2. Step 2: Convert to fraction form
    171,369.04/257,012.16 = 66,120.88/x
  3. Step 3: Cross multiply
    171,369.04x = 257,012.16 × 66,120.88
  4. Step 4: Simplify right side
    171,369.04x = 16,993,870,189.90
  5. Step 5: Solve for x
    x = 16,993,870,189.90/171,369.04
  6. Step 6: Final answer
    x = 99,165.35

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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.