Home / 121,136.04-181,704.84-42,249.96

Finding the Fourth Proportional to 121,136.04, 181,704.84 and 42,249.96

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Solution

The fourth proportional to 121,136.04, 181,704.84 and 42,249.96 is: 63,375.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,136.04 : 181,704.84 = 42,249.96 : x
  2. Step 2: Convert to fraction form
    121,136.04/181,704.84 = 42,249.96/x
  3. Step 3: Cross multiply
    121,136.04x = 181,704.84 × 42,249.96
  4. Step 4: Simplify right side
    121,136.04x = 7,677,022,221.81
  5. Step 5: Solve for x
    x = 7,677,022,221.81/121,136.04
  6. Step 6: Final answer
    x = 63,375.21

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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.