Home / 221,725.04-305,980.84-126,231.73

Finding the Fourth Proportional to 221,725.04, 305,980.84 and 126,231.73

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Solution

The fourth proportional to 221,725.04, 305,980.84 and 126,231.73 is: 174,199.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,725.04 : 305,980.84 = 126,231.73 : x
  2. Step 2: Convert to fraction form
    221,725.04/305,980.84 = 126,231.73/x
  3. Step 3: Cross multiply
    221,725.04x = 305,980.84 × 126,231.73
  4. Step 4: Simplify right side
    221,725.04x = 38,624,488,618.99
  5. Step 5: Solve for x
    x = 38,624,488,618.99/221,725.04
  6. Step 6: Final answer
    x = 174,199.94

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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.