Home / 215,935.63-323,950.83-66,187.20

Finding the Fourth Proportional to 215,935.63, 323,950.83 and 66,187.20

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Solution

The fourth proportional to 215,935.63, 323,950.83 and 66,187.20 is: 99,295.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,935.63 : 323,950.83 = 66,187.20 : x
  2. Step 2: Convert to fraction form
    215,935.63/323,950.83 = 66,187.20/x
  3. Step 3: Cross multiply
    215,935.63x = 323,950.83 × 66,187.20
  4. Step 4: Simplify right side
    215,935.63x = 21,441,398,375.38
  5. Step 5: Solve for x
    x = 21,441,398,375.38/215,935.63
  6. Step 6: Final answer
    x = 99,295.32

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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.