Home / 126,128.96-174,059.30-69,542.36

Finding the Fourth Proportional to 126,128.96, 174,059.30 and 69,542.36

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Solution

The fourth proportional to 126,128.96, 174,059.30 and 69,542.36 is: 95,969.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,128.96 : 174,059.30 = 69,542.36 : x
  2. Step 2: Convert to fraction form
    126,128.96/174,059.30 = 69,542.36/x
  3. Step 3: Cross multiply
    126,128.96x = 174,059.30 × 69,542.36
  4. Step 4: Simplify right side
    126,128.96x = 12,104,494,501.95
  5. Step 5: Solve for x
    x = 12,104,494,501.95/126,128.96
  6. Step 6: Final answer
    x = 95,969.19

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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.