Home / 125,538.75-173,201.31-71,083.50

Finding the Fourth Proportional to 125,538.75, 173,201.31 and 71,083.50

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Solution

The fourth proportional to 125,538.75, 173,201.31 and 71,083.50 is: 98,071.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,538.75 : 173,201.31 = 71,083.50 : x
  2. Step 2: Convert to fraction form
    125,538.75/173,201.31 = 71,083.50/x
  3. Step 3: Cross multiply
    125,538.75x = 173,201.31 × 71,083.50
  4. Step 4: Simplify right side
    125,538.75x = 12,311,755,319.39
  5. Step 5: Solve for x
    x = 12,311,755,319.39/125,538.75
  6. Step 6: Final answer
    x = 98,071.36

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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.