Home / 115,438.38-173,175.78-48,878.88

Finding the Fourth Proportional to 115,438.38, 173,175.78 and 48,878.88

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Solution

The fourth proportional to 115,438.38, 173,175.78 and 48,878.88 is: 73,326.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,438.38 : 173,175.78 = 48,878.88 : x
  2. Step 2: Convert to fraction form
    115,438.38/173,175.78 = 48,878.88/x
  3. Step 3: Cross multiply
    115,438.38x = 173,175.78 × 48,878.88
  4. Step 4: Simplify right side
    115,438.38x = 8,464,638,169.53
  5. Step 5: Solve for x
    x = 8,464,638,169.53/115,438.38
  6. Step 6: Final answer
    x = 73,326.03

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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.