Home / 220,664.96-304,519.20-120,063.68

Finding the Fourth Proportional to 220,664.96, 304,519.20 and 120,063.68

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Solution

The fourth proportional to 220,664.96, 304,519.20 and 120,063.68 is: 165,688.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,664.96 : 304,519.20 = 120,063.68 : x
  2. Step 2: Convert to fraction form
    220,664.96/304,519.20 = 120,063.68/x
  3. Step 3: Cross multiply
    220,664.96x = 304,519.20 × 120,063.68
  4. Step 4: Simplify right side
    220,664.96x = 36,561,695,782.66
  5. Step 5: Solve for x
    x = 36,561,695,782.66/220,664.96
  6. Step 6: Final answer
    x = 165,688.72

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1.5x scale

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.