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Finding the Fourth Proportional to 126,871.79, 175,101.71 and 73,146.29

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Solution

The fourth proportional to 126,871.79, 175,101.71 and 73,146.29 is: 100,952.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,871.79 : 175,101.71 = 73,146.29 : x
  2. Step 2: Convert to fraction form
    126,871.79/175,101.71 = 73,146.29/x
  3. Step 3: Cross multiply
    126,871.79x = 175,101.71 × 73,146.29
  4. Step 4: Simplify right side
    126,871.79x = 12,808,039,217.92
  5. Step 5: Solve for x
    x = 12,808,039,217.92/126,871.79
  6. Step 6: Final answer
    x = 100,952.62

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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.