Home / 126,968.84-175,206-72,520.74

Finding the Fourth Proportional to 126,968.84, 175,206 and 72,520.74

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Solution

The fourth proportional to 126,968.84, 175,206 and 72,520.74 is: 100,072.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,968.84 : 175,206 = 72,520.74 : x
  2. Step 2: Convert to fraction form
    126,968.84/175,206 = 72,520.74/x
  3. Step 3: Cross multiply
    126,968.84x = 175,206 × 72,520.74
  4. Step 4: Simplify right side
    126,968.84x = 12,706,068,772.44
  5. Step 5: Solve for x
    x = 12,706,068,772.44/126,968.84
  6. Step 6: Final answer
    x = 100,072.34

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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.