Home / 125,022.36-172,531.92-71,310.09

Finding the Fourth Proportional to 125,022.36, 172,531.92 and 71,310.09

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Solution

The fourth proportional to 125,022.36, 172,531.92 and 71,310.09 is: 98,408.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,022.36 : 172,531.92 = 71,310.09 : x
  2. Step 2: Convert to fraction form
    125,022.36/172,531.92 = 71,310.09/x
  3. Step 3: Cross multiply
    125,022.36x = 172,531.92 × 71,310.09
  4. Step 4: Simplify right side
    125,022.36x = 12,303,266,743.07
  5. Step 5: Solve for x
    x = 12,303,266,743.07/125,022.36
  6. Step 6: Final answer
    x = 98,408.53

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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.