Home / 161,930.87-223,463.91-89,331.80

Finding the Fourth Proportional to 161,930.87, 223,463.91 and 89,331.80

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Solution

The fourth proportional to 161,930.87, 223,463.91 and 89,331.80 is: 123,277.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,930.87 : 223,463.91 = 89,331.80 : x
  2. Step 2: Convert to fraction form
    161,930.87/223,463.91 = 89,331.80/x
  3. Step 3: Cross multiply
    161,930.87x = 223,463.91 × 89,331.80
  4. Step 4: Simplify right side
    161,930.87x = 19,962,433,874.00
  5. Step 5: Solve for x
    x = 19,962,433,874.00/161,930.87
  6. Step 6: Final answer
    x = 123,277.51

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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.