Home / 126,380.34-174,402.54-69,790.50

Finding the Fourth Proportional to 126,380.34, 174,402.54 and 69,790.50

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Solution

The fourth proportional to 126,380.34, 174,402.54 and 69,790.50 is: 96,309.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,380.34 : 174,402.54 = 69,790.50 : x
  2. Step 2: Convert to fraction form
    126,380.34/174,402.54 = 69,790.50/x
  3. Step 3: Cross multiply
    126,380.34x = 174,402.54 × 69,790.50
  4. Step 4: Simplify right side
    126,380.34x = 12,171,640,467.87
  5. Step 5: Solve for x
    x = 12,171,640,467.87/126,380.34
  6. Step 6: Final answer
    x = 96,309.60

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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.