Home / 126,581.22-174,699.45-76,270.50

Finding the Fourth Proportional to 126,581.22, 174,699.45 and 76,270.50

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Solution

The fourth proportional to 126,581.22, 174,699.45 and 76,270.50 is: 105,263.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,581.22 : 174,699.45 = 76,270.50 : x
  2. Step 2: Convert to fraction form
    126,581.22/174,699.45 = 76,270.50/x
  3. Step 3: Cross multiply
    126,581.22x = 174,699.45 × 76,270.50
  4. Step 4: Simplify right side
    126,581.22x = 13,324,414,401.23
  5. Step 5: Solve for x
    x = 13,324,414,401.23/126,581.22
  6. Step 6: Final answer
    x = 105,263.75

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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.