Home / 126,926.20-190,259.70-74,308.60

Finding the Fourth Proportional to 126,926.20, 190,259.70 and 74,308.60

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Solution

The fourth proportional to 126,926.20, 190,259.70 and 74,308.60 is: 111,387.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,926.20 : 190,259.70 = 74,308.60 : x
  2. Step 2: Convert to fraction form
    126,926.20/190,259.70 = 74,308.60/x
  3. Step 3: Cross multiply
    126,926.20x = 190,259.70 × 74,308.60
  4. Step 4: Simplify right side
    126,926.20x = 14,137,931,943.42
  5. Step 5: Solve for x
    x = 14,137,931,943.42/126,926.20
  6. Step 6: Final answer
    x = 111,387.03

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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.