Home / 215,763.23-323,633.21-66,003.54

Finding the Fourth Proportional to 215,763.23, 323,633.21 and 66,003.54

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Solution

The fourth proportional to 215,763.23, 323,633.21 and 66,003.54 is: 99,001.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,763.23 : 323,633.21 = 66,003.54 : x
  2. Step 2: Convert to fraction form
    215,763.23/323,633.21 = 66,003.54/x
  3. Step 3: Cross multiply
    215,763.23x = 323,633.21 × 66,003.54
  4. Step 4: Simplify right side
    215,763.23x = 21,360,937,191.55
  5. Step 5: Solve for x
    x = 21,360,937,191.55/215,763.23
  6. Step 6: Final answer
    x = 99,001.75

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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.