Home / 126,959.40-190,438.14-38,212.52

Finding the Fourth Proportional to 126,959.40, 190,438.14 and 38,212.52

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Solution

The fourth proportional to 126,959.40, 190,438.14 and 38,212.52 is: 57,318.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,959.40 : 190,438.14 = 38,212.52 : x
  2. Step 2: Convert to fraction form
    126,959.40/190,438.14 = 38,212.52/x
  3. Step 3: Cross multiply
    126,959.40x = 190,438.14 × 38,212.52
  4. Step 4: Simplify right side
    126,959.40x = 7,277,121,233.51
  5. Step 5: Solve for x
    x = 7,277,121,233.51/126,959.40
  6. Step 6: Final answer
    x = 57,318.49

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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.