Home / 451,988.15-677,962.79-136,435.64

Finding the Fourth Proportional to 451,988.15, 677,962.79 and 136,435.64

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Solution

The fourth proportional to 451,988.15, 677,962.79 and 136,435.64 is: 204,647.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,988.15 : 677,962.79 = 136,435.64 : x
  2. Step 2: Convert to fraction form
    451,988.15/677,962.79 = 136,435.64/x
  3. Step 3: Cross multiply
    451,988.15x = 677,962.79 × 136,435.64
  4. Step 4: Simplify right side
    451,988.15x = 92,498,287,019.29
  5. Step 5: Solve for x
    x = 92,498,287,019.29/451,988.15
  6. Step 6: Final answer
    x = 204,647.59

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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.