Home / 126,610.32-189,936.60-51,770.64

Finding the Fourth Proportional to 126,610.32, 189,936.60 and 51,770.64

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Solution

The fourth proportional to 126,610.32, 189,936.60 and 51,770.64 is: 77,664.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,610.32 : 189,936.60 = 51,770.64 : x
  2. Step 2: Convert to fraction form
    126,610.32/189,936.60 = 51,770.64/x
  3. Step 3: Cross multiply
    126,610.32x = 189,936.60 × 51,770.64
  4. Step 4: Simplify right side
    126,610.32x = 9,833,139,341.42
  5. Step 5: Solve for x
    x = 9,833,139,341.42/126,610.32
  6. Step 6: Final answer
    x = 77,664.60

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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.