Home / 259,935.84-389,903.76-110,172.78

Finding the Fourth Proportional to 259,935.84, 389,903.76 and 110,172.78

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Solution

The fourth proportional to 259,935.84, 389,903.76 and 110,172.78 is: 165,259.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,935.84 : 389,903.76 = 110,172.78 : x
  2. Step 2: Convert to fraction form
    259,935.84/389,903.76 = 110,172.78/x
  3. Step 3: Cross multiply
    259,935.84x = 389,903.76 × 110,172.78
  4. Step 4: Simplify right side
    259,935.84x = 42,956,781,171.65
  5. Step 5: Solve for x
    x = 42,956,781,171.65/259,935.84
  6. Step 6: Final answer
    x = 165,259.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.