Home / 146,005.74-219,015.78-71,189.84

Finding the Fourth Proportional to 146,005.74, 219,015.78 and 71,189.84

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Solution

The fourth proportional to 146,005.74, 219,015.78 and 71,189.84 is: 106,788.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,005.74 : 219,015.78 = 71,189.84 : x
  2. Step 2: Convert to fraction form
    146,005.74/219,015.78 = 71,189.84/x
  3. Step 3: Cross multiply
    146,005.74x = 219,015.78 × 71,189.84
  4. Step 4: Simplify right side
    146,005.74x = 15,591,697,418.57
  5. Step 5: Solve for x
    x = 15,591,697,418.57/146,005.74
  6. Step 6: Final answer
    x = 106,788.25

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1.5x scale

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.