Home / 125,965.20-188,944.60-51,065.28

Finding the Fourth Proportional to 125,965.20, 188,944.60 and 51,065.28

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Solution

The fourth proportional to 125,965.20, 188,944.60 and 51,065.28 is: 76,596.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,965.20 : 188,944.60 = 51,065.28 : x
  2. Step 2: Convert to fraction form
    125,965.20/188,944.60 = 51,065.28/x
  3. Step 3: Cross multiply
    125,965.20x = 188,944.60 × 51,065.28
  4. Step 4: Simplify right side
    125,965.20x = 9,648,508,903.49
  5. Step 5: Solve for x
    x = 9,648,508,903.49/125,965.20
  6. Step 6: Final answer
    x = 76,596.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.