Home / 221,669.08-305,905.35-126,181.96

Finding the Fourth Proportional to 221,669.08, 305,905.35 and 126,181.96

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Solution

The fourth proportional to 221,669.08, 305,905.35 and 126,181.96 is: 174,132.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,669.08 : 305,905.35 = 126,181.96 : x
  2. Step 2: Convert to fraction form
    221,669.08/305,905.35 = 126,181.96/x
  3. Step 3: Cross multiply
    221,669.08x = 305,905.35 × 126,181.96
  4. Step 4: Simplify right side
    221,669.08x = 38,599,736,637.49
  5. Step 5: Solve for x
    x = 38,599,736,637.49/221,669.08
  6. Step 6: Final answer
    x = 174,132.25

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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.