Home / 126,905.11-190,381.70-51,009.57

Finding the Fourth Proportional to 126,905.11, 190,381.70 and 51,009.57

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Solution

The fourth proportional to 126,905.11, 190,381.70 and 51,009.57 is: 76,524.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,905.11 : 190,381.70 = 51,009.57 : x
  2. Step 2: Convert to fraction form
    126,905.11/190,381.70 = 51,009.57/x
  3. Step 3: Cross multiply
    126,905.11x = 190,381.70 × 51,009.57
  4. Step 4: Simplify right side
    126,905.11x = 9,711,288,652.87
  5. Step 5: Solve for x
    x = 9,711,288,652.87/126,905.11
  6. Step 6: Final answer
    x = 76,524.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.