Home / 144,097.20-198,847.80-80,433.72

Finding the Fourth Proportional to 144,097.20, 198,847.80 and 80,433.72

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Solution

The fourth proportional to 144,097.20, 198,847.80 and 80,433.72 is: 110,995.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,097.20 : 198,847.80 = 80,433.72 : x
  2. Step 2: Convert to fraction form
    144,097.20/198,847.80 = 80,433.72/x
  3. Step 3: Cross multiply
    144,097.20x = 198,847.80 × 80,433.72
  4. Step 4: Simplify right side
    144,097.20x = 15,994,068,267.82
  5. Step 5: Solve for x
    x = 15,994,068,267.82/144,097.20
  6. Step 6: Final answer
    x = 110,995.00

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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.