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Finding the Fourth Proportional to 180,246.70, 248,730.46 and 99,669.43

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Solution

The fourth proportional to 180,246.70, 248,730.46 and 99,669.43 is: 137,538.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,246.70 : 248,730.46 = 99,669.43 : x
  2. Step 2: Convert to fraction form
    180,246.70/248,730.46 = 99,669.43/x
  3. Step 3: Cross multiply
    180,246.70x = 248,730.46 × 99,669.43
  4. Step 4: Simplify right side
    180,246.70x = 24,790,823,171.84
  5. Step 5: Solve for x
    x = 24,790,823,171.84/180,246.70
  6. Step 6: Final answer
    x = 137,538.29

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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.