Home / 161,949.21-223,490.25-90,327.39

Finding the Fourth Proportional to 161,949.21, 223,490.25 and 90,327.39

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Solution

The fourth proportional to 161,949.21, 223,490.25 and 90,327.39 is: 124,651.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,949.21 : 223,490.25 = 90,327.39 : x
  2. Step 2: Convert to fraction form
    161,949.21/223,490.25 = 90,327.39/x
  3. Step 3: Cross multiply
    161,949.21x = 223,490.25 × 90,327.39
  4. Step 4: Simplify right side
    161,949.21x = 20,187,290,972.95
  5. Step 5: Solve for x
    x = 20,187,290,972.95/161,949.21
  6. Step 6: Final answer
    x = 124,651.99

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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.