Home / 126,026-173,914.02-72,309.84

Finding the Fourth Proportional to 126,026, 173,914.02 and 72,309.84

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Solution

The fourth proportional to 126,026, 173,914.02 and 72,309.84 is: 99,786.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,026 : 173,914.02 = 72,309.84 : x
  2. Step 2: Convert to fraction form
    126,026/173,914.02 = 72,309.84/x
  3. Step 3: Cross multiply
    126,026x = 173,914.02 × 72,309.84
  4. Step 4: Simplify right side
    126,026x = 12,575,694,959.96
  5. Step 5: Solve for x
    x = 12,575,694,959.96/126,026
  6. Step 6: Final answer
    x = 99,786.51

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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.