Home / 221,669.50-305,905.86-126,182.34

Finding the Fourth Proportional to 221,669.50, 305,905.86 and 126,182.34

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Solution

The fourth proportional to 221,669.50, 305,905.86 and 126,182.34 is: 174,132.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,669.50 : 305,905.86 = 126,182.34 : x
  2. Step 2: Convert to fraction form
    221,669.50/305,905.86 = 126,182.34/x
  3. Step 3: Cross multiply
    221,669.50x = 305,905.86 × 126,182.34
  4. Step 4: Simplify right side
    221,669.50x = 38,599,917,234.51
  5. Step 5: Solve for x
    x = 38,599,917,234.51/221,669.50
  6. Step 6: Final answer
    x = 174,132.74

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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.