Home / 144,081.03-198,832.05-80,418.81

Finding the Fourth Proportional to 144,081.03, 198,832.05 and 80,418.81

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Solution

The fourth proportional to 144,081.03, 198,832.05 and 80,418.81 is: 110,978.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,081.03 : 198,832.05 = 80,418.81 : x
  2. Step 2: Convert to fraction form
    144,081.03/198,832.05 = 80,418.81/x
  3. Step 3: Cross multiply
    144,081.03x = 198,832.05 × 80,418.81
  4. Step 4: Simplify right side
    144,081.03x = 15,989,835,454.61
  5. Step 5: Solve for x
    x = 15,989,835,454.61/144,081.03
  6. Step 6: Final answer
    x = 110,978.08

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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.