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Finding the Fourth Proportional to 162,410.70, 243,529.65 and 68,810.70

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Solution

The fourth proportional to 162,410.70, 243,529.65 and 68,810.70 is: 103,179.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,410.70 : 243,529.65 = 68,810.70 : x
  2. Step 2: Convert to fraction form
    162,410.70/243,529.65 = 68,810.70/x
  3. Step 3: Cross multiply
    162,410.70x = 243,529.65 × 68,810.70
  4. Step 4: Simplify right side
    162,410.70x = 16,757,445,687.26
  5. Step 5: Solve for x
    x = 16,757,445,687.26/162,410.70
  6. Step 6: Final answer
    x = 103,179.44

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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.