Home / 126,709.31-174,867.05-70,120.69

Finding the Fourth Proportional to 126,709.31, 174,867.05 and 70,120.69

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Solution

The fourth proportional to 126,709.31, 174,867.05 and 70,120.69 is: 96,771.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,709.31 : 174,867.05 = 70,120.69 : x
  2. Step 2: Convert to fraction form
    126,709.31/174,867.05 = 70,120.69/x
  3. Step 3: Cross multiply
    126,709.31x = 174,867.05 × 70,120.69
  4. Step 4: Simplify right side
    126,709.31x = 12,261,797,942.40
  5. Step 5: Solve for x
    x = 12,261,797,942.40/126,709.31
  6. Step 6: Final answer
    x = 96,771.09

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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.