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Finding the Fourth Proportional to 162,689.40, 244,137.78 and 69,195

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Solution

The fourth proportional to 162,689.40, 244,137.78 and 69,195 is: 103,836.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,689.40 : 244,137.78 = 69,195 : x
  2. Step 2: Convert to fraction form
    162,689.40/244,137.78 = 69,195/x
  3. Step 3: Cross multiply
    162,689.40x = 244,137.78 × 69,195
  4. Step 4: Simplify right side
    162,689.40x = 16,893,113,687.10
  5. Step 5: Solve for x
    x = 16,893,113,687.10/162,689.40
  6. Step 6: Final answer
    x = 103,836.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.