Home / 126,339.60-174,341.64-78,591.44

Finding the Fourth Proportional to 126,339.60, 174,341.64 and 78,591.44

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Solution

The fourth proportional to 126,339.60, 174,341.64 and 78,591.44 is: 108,451.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,339.60 : 174,341.64 = 78,591.44 : x
  2. Step 2: Convert to fraction form
    126,339.60/174,341.64 = 78,591.44/x
  3. Step 3: Cross multiply
    126,339.60x = 174,341.64 × 78,591.44
  4. Step 4: Simplify right side
    126,339.60x = 13,701,760,539.56
  5. Step 5: Solve for x
    x = 13,701,760,539.56/126,339.60
  6. Step 6: Final answer
    x = 108,451.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.