Home / 161,739.99-223,198.22-90,118.47

Finding the Fourth Proportional to 161,739.99, 223,198.22 and 90,118.47

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Solution

The fourth proportional to 161,739.99, 223,198.22 and 90,118.47 is: 124,361.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,739.99 : 223,198.22 = 90,118.47 : x
  2. Step 2: Convert to fraction form
    161,739.99/223,198.22 = 90,118.47/x
  3. Step 3: Cross multiply
    161,739.99x = 223,198.22 × 90,118.47
  4. Step 4: Simplify right side
    161,739.99x = 20,114,281,642.53
  5. Step 5: Solve for x
    x = 20,114,281,642.53/161,739.99
  6. Step 6: Final answer
    x = 124,361.83

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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.