Home / 126,241.88-174,276.93-78,510.61

Finding the Fourth Proportional to 126,241.88, 174,276.93 and 78,510.61

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Solution

The fourth proportional to 126,241.88, 174,276.93 and 78,510.61 is: 108,383.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,241.88 : 174,276.93 = 78,510.61 : x
  2. Step 2: Convert to fraction form
    126,241.88/174,276.93 = 78,510.61/x
  3. Step 3: Cross multiply
    126,241.88x = 174,276.93 × 78,510.61
  4. Step 4: Simplify right side
    126,241.88x = 13,682,586,819.29
  5. Step 5: Solve for x
    x = 13,682,586,819.29/126,241.88
  6. Step 6: Final answer
    x = 108,383.90

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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.