Home / 221,529.21-305,706.39-126,033.86

Finding the Fourth Proportional to 221,529.21, 305,706.39 and 126,033.86

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Solution

The fourth proportional to 221,529.21, 305,706.39 and 126,033.86 is: 173,924.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,529.21 : 305,706.39 = 126,033.86 : x
  2. Step 2: Convert to fraction form
    221,529.21/305,706.39 = 126,033.86/x
  3. Step 3: Cross multiply
    221,529.21x = 305,706.39 × 126,033.86
  4. Step 4: Simplify right side
    221,529.21x = 38,529,356,358.37
  5. Step 5: Solve for x
    x = 38,529,356,358.37/221,529.21
  6. Step 6: Final answer
    x = 173,924.50

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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.