Home / 144,009.50-198,731.68-79,482.20

Finding the Fourth Proportional to 144,009.50, 198,731.68 and 79,482.20

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Solution

The fourth proportional to 144,009.50, 198,731.68 and 79,482.20 is: 109,684.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,009.50 : 198,731.68 = 79,482.20 : x
  2. Step 2: Convert to fraction form
    144,009.50/198,731.68 = 79,482.20/x
  3. Step 3: Cross multiply
    144,009.50x = 198,731.68 × 79,482.20
  4. Step 4: Simplify right side
    144,009.50x = 15,795,629,943.73
  5. Step 5: Solve for x
    x = 15,795,629,943.73/144,009.50
  6. Step 6: Final answer
    x = 109,684.64

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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.