Home / 125,645.65-173,431.41-80,445.37

Finding the Fourth Proportional to 125,645.65, 173,431.41 and 80,445.37

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Solution

The fourth proportional to 125,645.65, 173,431.41 and 80,445.37 is: 111,040.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,645.65 : 173,431.41 = 80,445.37 : x
  2. Step 2: Convert to fraction form
    125,645.65/173,431.41 = 80,445.37/x
  3. Step 3: Cross multiply
    125,645.65x = 173,431.41 × 80,445.37
  4. Step 4: Simplify right side
    125,645.65x = 13,951,753,947.07
  5. Step 5: Solve for x
    x = 13,951,753,947.07/125,645.65
  6. Step 6: Final answer
    x = 111,040.49

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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.