Home / 146,491.20-219,736.80-71,659.35

Finding the Fourth Proportional to 146,491.20, 219,736.80 and 71,659.35

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Solution

The fourth proportional to 146,491.20, 219,736.80 and 71,659.35 is: 107,489.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,491.20 : 219,736.80 = 71,659.35 : x
  2. Step 2: Convert to fraction form
    146,491.20/219,736.80 = 71,659.35/x
  3. Step 3: Cross multiply
    146,491.20x = 219,736.80 × 71,659.35
  4. Step 4: Simplify right side
    146,491.20x = 15,746,196,259.08
  5. Step 5: Solve for x
    x = 15,746,196,259.08/146,491.20
  6. Step 6: Final answer
    x = 107,489.03

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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.