Home / 451,989.15-677,964.29-136,436.64

Finding the Fourth Proportional to 451,989.15, 677,964.29 and 136,436.64

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Solution

The fourth proportional to 451,989.15, 677,964.29 and 136,436.64 is: 204,649.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,989.15 : 677,964.29 = 136,436.64 : x
  2. Step 2: Convert to fraction form
    451,989.15/677,964.29 = 136,436.64/x
  3. Step 3: Cross multiply
    451,989.15x = 677,964.29 × 136,436.64
  4. Step 4: Simplify right side
    451,989.15x = 92,499,169,767.59
  5. Step 5: Solve for x
    x = 92,499,169,767.59/451,989.15
  6. Step 6: Final answer
    x = 204,649.09

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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.