Home / 126,938.16-190,521.45-67,824.36

Finding the Fourth Proportional to 126,938.16, 190,521.45 and 67,824.36

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Solution

The fourth proportional to 126,938.16, 190,521.45 and 67,824.36 is: 101,797.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,938.16 : 190,521.45 = 67,824.36 : x
  2. Step 2: Convert to fraction form
    126,938.16/190,521.45 = 67,824.36/x
  3. Step 3: Cross multiply
    126,938.16x = 190,521.45 × 67,824.36
  4. Step 4: Simplify right side
    126,938.16x = 12,921,995,412.52
  5. Step 5: Solve for x
    x = 12,921,995,412.52/126,938.16
  6. Step 6: Final answer
    x = 101,797.56

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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.