Home / 221,632.96-305,817.86-126,141.26

Finding the Fourth Proportional to 221,632.96, 305,817.86 and 126,141.26

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Solution

The fourth proportional to 221,632.96, 305,817.86 and 126,141.26 is: 174,054.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,632.96 : 305,817.86 = 126,141.26 : x
  2. Step 2: Convert to fraction form
    221,632.96/305,817.86 = 126,141.26/x
  3. Step 3: Cross multiply
    221,632.96x = 305,817.86 × 126,141.26
  4. Step 4: Simplify right side
    221,632.96x = 38,576,250,190.90
  5. Step 5: Solve for x
    x = 38,576,250,190.90/221,632.96
  6. Step 6: Final answer
    x = 174,054.66

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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.