Home / 125,406.08-173,065.38-68,819.48

Finding the Fourth Proportional to 125,406.08, 173,065.38 and 68,819.48

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Solution

The fourth proportional to 125,406.08, 173,065.38 and 68,819.48 is: 94,973.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,406.08 : 173,065.38 = 68,819.48 : x
  2. Step 2: Convert to fraction form
    125,406.08/173,065.38 = 68,819.48/x
  3. Step 3: Cross multiply
    125,406.08x = 173,065.38 × 68,819.48
  4. Step 4: Simplify right side
    125,406.08x = 11,910,269,457.60
  5. Step 5: Solve for x
    x = 11,910,269,457.60/125,406.08
  6. Step 6: Final answer
    x = 94,973.62

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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.