Home / 144,165.96-198,944.10-80,502.12

Finding the Fourth Proportional to 144,165.96, 198,944.10 and 80,502.12

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Solution

The fourth proportional to 144,165.96, 198,944.10 and 80,502.12 is: 111,090.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,165.96 : 198,944.10 = 80,502.12 : x
  2. Step 2: Convert to fraction form
    144,165.96/198,944.10 = 80,502.12/x
  3. Step 3: Cross multiply
    144,165.96x = 198,944.10 × 80,502.12
  4. Step 4: Simplify right side
    144,165.96x = 16,015,421,811.49
  5. Step 5: Solve for x
    x = 16,015,421,811.49/144,165.96
  6. Step 6: Final answer
    x = 111,090.18

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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.