Home / 125,629.75-173,383.79-74,642.89

Finding the Fourth Proportional to 125,629.75, 173,383.79 and 74,642.89

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Solution

The fourth proportional to 125,629.75, 173,383.79 and 74,642.89 is: 103,015.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,629.75 : 173,383.79 = 74,642.89 : x
  2. Step 2: Convert to fraction form
    125,629.75/173,383.79 = 74,642.89/x
  3. Step 3: Cross multiply
    125,629.75x = 173,383.79 × 74,642.89
  4. Step 4: Simplify right side
    125,629.75x = 12,941,867,590.68
  5. Step 5: Solve for x
    x = 12,941,867,590.68/125,629.75
  6. Step 6: Final answer
    x = 103,015.95

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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.