Home / 126,807.60-190,200.40-76,873

Finding the Fourth Proportional to 126,807.60, 190,200.40 and 76,873

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Solution

The fourth proportional to 126,807.60, 190,200.40 and 76,873 is: 115,302.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,807.60 : 190,200.40 = 76,873 : x
  2. Step 2: Convert to fraction form
    126,807.60/190,200.40 = 76,873/x
  3. Step 3: Cross multiply
    126,807.60x = 190,200.40 × 76,873
  4. Step 4: Simplify right side
    126,807.60x = 14,621,275,349.20
  5. Step 5: Solve for x
    x = 14,621,275,349.20/126,807.60
  6. Step 6: Final answer
    x = 115,302.83

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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.