Home / 144,102.96-198,861.30-83,688.44

Finding the Fourth Proportional to 144,102.96, 198,861.30 and 83,688.44

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Solution

The fourth proportional to 144,102.96, 198,861.30 and 83,688.44 is: 115,489.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,102.96 : 198,861.30 = 83,688.44 : x
  2. Step 2: Convert to fraction form
    144,102.96/198,861.30 = 83,688.44/x
  3. Step 3: Cross multiply
    144,102.96x = 198,861.30 × 83,688.44
  4. Step 4: Simplify right side
    144,102.96x = 16,642,391,973.37
  5. Step 5: Solve for x
    x = 16,642,391,973.37/144,102.96
  6. Step 6: Final answer
    x = 115,489.59

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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.