Home / 126,500.58-189,357.21-79,655.04

Finding the Fourth Proportional to 126,500.58, 189,357.21 and 79,655.04

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Solution

The fourth proportional to 126,500.58, 189,357.21 and 79,655.04 is: 119,234.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,500.58 : 189,357.21 = 79,655.04 : x
  2. Step 2: Convert to fraction form
    126,500.58/189,357.21 = 79,655.04/x
  3. Step 3: Cross multiply
    126,500.58x = 189,357.21 × 79,655.04
  4. Step 4: Simplify right side
    126,500.58x = 15,083,256,136.84
  5. Step 5: Solve for x
    x = 15,083,256,136.84/126,500.58
  6. Step 6: Final answer
    x = 119,234.68

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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.