Home / 149,136.42-205,740.24-88,672.71

Finding the Fourth Proportional to 149,136.42, 205,740.24 and 88,672.71

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Solution

The fourth proportional to 149,136.42, 205,740.24 and 88,672.71 is: 122,327.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,136.42 : 205,740.24 = 88,672.71 : x
  2. Step 2: Convert to fraction form
    149,136.42/205,740.24 = 88,672.71/x
  3. Step 3: Cross multiply
    149,136.42x = 205,740.24 × 88,672.71
  4. Step 4: Simplify right side
    149,136.42x = 18,243,544,636.85
  5. Step 5: Solve for x
    x = 18,243,544,636.85/149,136.42
  6. Step 6: Final answer
    x = 122,327.90

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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.