Home / 144,231-198,909.48-120,111.84

Finding the Fourth Proportional to 144,231, 198,909.48 and 120,111.84

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Solution

The fourth proportional to 144,231, 198,909.48 and 120,111.84 is: 165,646.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,231 : 198,909.48 = 120,111.84 : x
  2. Step 2: Convert to fraction form
    144,231/198,909.48 = 120,111.84/x
  3. Step 3: Cross multiply
    144,231x = 198,909.48 × 120,111.84
  4. Step 4: Simplify right side
    144,231x = 23,891,383,636.24
  5. Step 5: Solve for x
    x = 23,891,383,636.24/144,231
  6. Step 6: Final answer
    x = 165,646.66

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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.