Home / 126,245.22-174,281.52-78,513.96

Finding the Fourth Proportional to 126,245.22, 174,281.52 and 78,513.96

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Solution

The fourth proportional to 126,245.22, 174,281.52 and 78,513.96 is: 108,388.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,245.22 : 174,281.52 = 78,513.96 : x
  2. Step 2: Convert to fraction form
    126,245.22/174,281.52 = 78,513.96/x
  3. Step 3: Cross multiply
    126,245.22x = 174,281.52 × 78,513.96
  4. Step 4: Simplify right side
    126,245.22x = 13,683,532,290.02
  5. Step 5: Solve for x
    x = 13,683,532,290.02/126,245.22
  6. Step 6: Final answer
    x = 108,388.52

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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.