Home / 198,188.15-273,385.26-126,487.35

Finding the Fourth Proportional to 198,188.15, 273,385.26 and 126,487.35

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Solution

The fourth proportional to 198,188.15, 273,385.26 and 126,487.35 is: 174,479.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,188.15 : 273,385.26 = 126,487.35 : x
  2. Step 2: Convert to fraction form
    198,188.15/273,385.26 = 126,487.35/x
  3. Step 3: Cross multiply
    198,188.15x = 273,385.26 × 126,487.35
  4. Step 4: Simplify right side
    198,188.15x = 34,579,777,066.46
  5. Step 5: Solve for x
    x = 34,579,777,066.46/198,188.15
  6. Step 6: Final answer
    x = 174,479.54

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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.