Home / 149,035.67-205,672.73-81,057.03

Finding the Fourth Proportional to 149,035.67, 205,672.73 and 81,057.03

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Solution

The fourth proportional to 149,035.67, 205,672.73 and 81,057.03 is: 111,860.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,035.67 : 205,672.73 = 81,057.03 : x
  2. Step 2: Convert to fraction form
    149,035.67/205,672.73 = 81,057.03/x
  3. Step 3: Cross multiply
    149,035.67x = 205,672.73 × 81,057.03
  4. Step 4: Simplify right side
    149,035.67x = 16,671,220,645.79
  5. Step 5: Solve for x
    x = 16,671,220,645.79/149,035.67
  6. Step 6: Final answer
    x = 111,860.61

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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.