Home / 126,926.28-190,405.62-42,650.28

Finding the Fourth Proportional to 126,926.28, 190,405.62 and 42,650.28

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Solution

The fourth proportional to 126,926.28, 190,405.62 and 42,650.28 is: 63,980.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,926.28 : 190,405.62 = 42,650.28 : x
  2. Step 2: Convert to fraction form
    126,926.28/190,405.62 = 42,650.28/x
  3. Step 3: Cross multiply
    126,926.28x = 190,405.62 × 42,650.28
  4. Step 4: Simplify right side
    126,926.28x = 8,120,853,006.57
  5. Step 5: Solve for x
    x = 8,120,853,006.57/126,926.28
  6. Step 6: Final answer
    x = 63,980.86

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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.