Home / 221,543.22-305,725.70-126,047.88

Finding the Fourth Proportional to 221,543.22, 305,725.70 and 126,047.88

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Solution

The fourth proportional to 221,543.22, 305,725.70 and 126,047.88 is: 173,943.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,543.22 : 305,725.70 = 126,047.88 : x
  2. Step 2: Convert to fraction form
    221,543.22/305,725.70 = 126,047.88/x
  3. Step 3: Cross multiply
    221,543.22x = 305,725.70 × 126,047.88
  4. Step 4: Simplify right side
    221,543.22x = 38,536,076,346.52
  5. Step 5: Solve for x
    x = 38,536,076,346.52/221,543.22
  6. Step 6: Final answer
    x = 173,943.83

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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.