Home / 161,729.91-223,188.83-89,135.44

Finding the Fourth Proportional to 161,729.91, 223,188.83 and 89,135.44

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Solution

The fourth proportional to 161,729.91, 223,188.83 and 89,135.44 is: 123,007.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,729.91 : 223,188.83 = 89,135.44 : x
  2. Step 2: Convert to fraction form
    161,729.91/223,188.83 = 89,135.44/x
  3. Step 3: Cross multiply
    161,729.91x = 223,188.83 × 89,135.44
  4. Step 4: Simplify right side
    161,729.91x = 19,894,033,561.49
  5. Step 5: Solve for x
    x = 19,894,033,561.49/161,729.91
  6. Step 6: Final answer
    x = 123,007.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.