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Finding the Fourth Proportional to 162,611.88, 243,961.74 and 67,810.68

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Solution

The fourth proportional to 162,611.88, 243,961.74 and 67,810.68 is: 101,734.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,611.88 : 243,961.74 = 67,810.68 : x
  2. Step 2: Convert to fraction form
    162,611.88/243,961.74 = 67,810.68/x
  3. Step 3: Cross multiply
    162,611.88x = 243,961.74 × 67,810.68
  4. Step 4: Simplify right side
    162,611.88x = 16,543,211,483.38
  5. Step 5: Solve for x
    x = 16,543,211,483.38/162,611.88
  6. Step 6: Final answer
    x = 101,734.34

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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.