Home / 205,812.63-283,931.28-120,891.42

Finding the Fourth Proportional to 205,812.63, 283,931.28 and 120,891.42

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Solution

The fourth proportional to 205,812.63, 283,931.28 and 120,891.42 is: 166,777.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,812.63 : 283,931.28 = 120,891.42 : x
  2. Step 2: Convert to fraction form
    205,812.63/283,931.28 = 120,891.42/x
  3. Step 3: Cross multiply
    205,812.63x = 283,931.28 × 120,891.42
  4. Step 4: Simplify right side
    205,812.63x = 34,324,855,621.62
  5. Step 5: Solve for x
    x = 34,324,855,621.62/205,812.63
  6. Step 6: Final answer
    x = 166,777.21

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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.